Synthetic motor oil

jeffyscott

I was initially as guilty as the automakers on this one. I was leaning toward blaming careless owners and sensationalist journalism.

That is generally a very reasonable initial assumption, though.

timvipond

"And alas---- I myself have yet to see (or even hear of) a case of an oil company paying a warranty on a sludge complaint after the factory refused to. There may be one out there, but I've never seen it. I'd really like to have someone come on board who has had this experience successfully concluded."

"YOU are your best warranty. Do not expect some large entity to bail you out when you snap your fingers."

AMSOIL paid a few of these claims right away and was eventually reimbursed by the auto manufacturer.

Mr_Shiftright

True, true. That's why whenever someone is jumping up and down about some "defect" or about a "lemon", I like to put the fire to it and test it out.

Most such claims will burn up in the fire of careful research, but some don't---they remain intact, suggesting that they are quite substantial.

I think what really put me over the edge was when engines started showing up that were heavily sludged with very low miles on them.

That was just too weird.

richardson

Toyota claimed that a certain number of those sludge monsters were cars that came off of lease with about 30000 miles on them and the factory installed oil filter still on the car.

mcdawgg

Toyota claimed that a certain number of those sludge monsters were cars that came off of lease with about 30000 miles on them and the factory installed oil filter still on the car.

I bet anything that it true. Before Toyota went to the cartridge oil filter, the factory oil filter used a RED o-ring on the oil filter - that's how they could easily tell that the oil filter was from the factory.

I know 3 people with these so-called sludge-prone engines. They all had their oil changed per factory required schedule, and they had NO sludge, no problems. Two of them went slightly past 100k miles before they traded/sold them, and the third I think was just over 90k.

vipasynthetics

Me... being in the oil change industry and having contact with many quick lube shops...it is not surprising that the filter wasnt changed...many many people who lease vehicles do not change filters but...dont even change the oil..they justt top it off with the cheapest stuff they could find and it may not be motor oil...it is anything they get their hands on...so leasing companies...and car dealers....do not try to sell me a car that is about 2 - 3 years old with 30-40 K miles on it as its been leased and not properly taken care of....and that goes for any one looking to purchase a car..make sure it wasnt leased.........

Mr_Shiftright

I think the expression "the exception proofs (tests) the rule" is what counts here. The rule might be that if you don't change the filter, the engine will sludge up. Fair enough.

But the exception was those cases where people did in fact change it regularly, and still got sludge.

And when Toyota suggested to THESE people that they were guilty, they got furious and opened up a media blitz that I think scared the hell out of Toyota.

geo2spitfire

After doing oil testing in an actual lab, Mobil 1 gear oil is the only way to go. I was involved in a program for NASCAR factory supported teams that showed that with all the current oils available, and this included special non-commercially available blends, Mobil 1 75w90 was the best for efficiency (fuel economy). It ran cooler and thus more efficient. Then for engines on the dyno, per manufacturesr request, we used Mobil 1 oil as it was by far the best for the money. Our customers could use any oil on the market but Mobil 1 was chosen based on cost vs. value.

I have personally used Mobil 1 0w40 and 5w30 for my cars and have been completely satisfied. I change my oil at 7500 + mile increments. Most of the european cars go for 10000 plus miles between oil changes. Between the better quality fuels and higher temperatures modern engine run (which keep the deposits down in the oil) changing ANY oil at less than mfg recomended intervals is a waste of oil. Remember when Mobil 1 first came out and Mobil recomended 15000 miles between oil changes? I figure, with this, and the mfg stating 7500 miles between changes, all of the "quick oil change" places were losing money and started the 3000 mile oil change market blitz. But that IS just my opinion.

geo2spitfire

The OEM's are currently putting synthetics in their cars. GM uses Dex VI ATF and I know Chrysler's latest ATF is too. The whole idea is running cooler and shifting smoother. And, with these oils, it take less power to pump them thus leading to better fuel economy and lower emissions which is the name of the game these days. Thinner oils of any kind are better for fuel economy.

geo2spitfire

Do you do alot of towing? I had the same question on my 1995 Dodge 2500 4x4 and called a buddy at Chrysler transmission engineering and he said the if normal type driving was all I did (not much towing) that I NEVER needed to change the oil! I am at 117000 miles on the original oil without issue. And the oil is not synthetic!

And I would reccomend that when you change your oil to go with GM spec Dex VI. I am currently running dyno durability tests on the 4L80-E trans and that is what is used and the transmissions show no sign of wear.

geo2spitfire

Another trick that I used to do to my 1983 Plymouth Turismo with a 2.2L engine was to use one quart of ATF with four quarts of oil. The ATF has so much detergent in it that it kep everything clean. I started this at 20000 miles when I got the car. BUT, don't start this on a high mile neglected engine unless you want to drop the oil pan to clean out all the junk in it.

After 178000 miles, the inside of the engine was spotless! I changed the oil every 7500 miles and used a FL1A oil filter which was a larger capacity than the original filter. The engine out lasted the car by a long shot.

geo2spitfire

Oh I agree that there is nothing wrong with dino oil. All depends on what type of duty cycle the engine sees.

geo2spitfire

Most of the reason for larger oil capacity is a) Cooling. Which is the main thing that oil does for an engine. b) Extended oil change intervals.

vipasynthetics

I am Curious to know...what other gear lubes were tested along with the Mobil 1 Gear lube.....?????...and what other specific tests were performed...and the accuracy in the tests.........
Fact.....Your test might have shown best in fuel economy..but this is not the only requirement that differentials need....nor does it reflect the overall performance of Mobil 1 or any other lube........More important factors are protection from wear...Oxidation,,foaming,,,Shearing...and other performance requirements that a gear lube needs to do in a differential........Particularly if you use it in any extreme conditions like Racing, towing,,,etc.....I know of a gear lube study which shows gear lubes as they perfomed among a variety of tests.....16 tests to be exact......The results show the gear lube that is best suited for all gear lube requirements.......for protection, performance, longevity,,,pricing...across the board, not just one test on fuel economy....This test includes mobil 1 ...
If anyone is interested...let me know, and I will with pride send out a hard copy of the testing results as performed by an independent Laboratory...and performed in accordance to ASTM procedures and the SAE J306 requirements and federal test method standards....not just on a dyno... ....This booklet will educate, and put you in a better position to select the best lube for your needs..... let me know you email address... I can send it that way........I am not here to offend anyone or endorse any product...just stating, and if interested, show the true facts....

Sandman6472

Jeez-Louise!

The Sandman :sick: :shades:

Mr_Shiftright

8545 refers to a post that was deleted for soliciting in the forums.

timvipond

"8545 refers to a post that was deleted for soliciting in the forums." If you click on that link, it takes you directly to "A Study of Automotive Gear Lubes", with data provided by independent world renown SouthWest Research Institute who performed standard ASTM and SAE performance tests on blind samples, with no access to any sales, website, or any solicitation. This data has never been disputed by the named gear lube companies, nor anyone reputable in the gear oil industry.

You can easily find "A Study of Automotive Gear Lubes" white paper by Googling the same. It is widely read and has 6800 search results. I wish other oil companies would post their comparison data (they all have it) but since they don't make the best gear oil, they don't publish the results. They are more interested in making gear oils that make the most profits, not the best. I know. I worked for one of the majors for 28 years

timvipond

From the Dodge Dakota board:

RE: put transmission fluid in oil?
IP: Logged

Message:
When at Chrysler Engineering we would put trans fluid in an engine to accelerate the wear on the cam,lifters and crank bearings.In other words we used it to destroy the engine. I wouldn't drive it at all with trans fluid in it. Just get it to running temp for a while,then drain it while it's hot. Put engine oil in it,run it again till it's hot and change the oil and filter again.

From the Mobil 1 website:

Question:
Does Inadvertently Adding Transmission Fluid to Oil Cause Problems?
What happens if you accidentally add Mobil 1 synthetic transmission multi-vehicle formula to a car that has Mobil 1 oil? Will I screw up the engine? I accidentally added one quart to my car.
-- Kenneth Pettiford, Pomona, CA

Answer:
It is unlikely that you will cause any damage with this mistake, but since the transmission fluid is a light viscosity, you need to check your oil level. We suggest you change the oil as soon as you get a chance just to be on the safe side.

tommy75

I have an 02 Ford 350 7,3 turbo diesel 6 sp stick with 115,000 mi. I have always used Rotella 15w40 oil. I have been told that synthetic 5w40 is best year round for instant lub and fuel economy but others say that it may cause oil leaks. Can anyone with experience help?

tommy75

Also, any gear lube/tranny advice for this 350 7.4? Thank you.

timvipond

Go with the below recommended and warranted AMSOIL 5w30 HDD for the best year round instant lube and fuel economy. It won't cause leaks if your seals do not show leakage and are in good shape. I provide these products to many fleets with trucks like yours. No problems reported and many notice performance improvements and go much longer between fluid and filter changes saving them time and money. Feel free to contact me for more information.

2002 FORD TRUCKS F350 PICKUP 7.3L 8-cyl Engine Code [F] Turbo Diesel
LUBRICANTS & FLUIDS:
Engine Oil
Grade 1......CI-4
AMSOIL SAE 15W-40 Synthetic Heavy Duty Diesel and Marine Motor Oil (AMEQT)
AMSOIL SAE 15W-40 Synthetic Blend Diesel Oil (PCOQT)
AMSOIL Synthetic 5W-40 Premium Diesel Oil (DEOQT)
AMSOIL Series 3000 SAE 5W-30 Synthetic Heavy Duty Diesel Oil (HDDQT)
-9 To 90F......10W-30
Above 10F......15W-40
Below 30F......5W-30
Below 0F......0W-30
Manual Transmission,6-SPD ZF S6-650......MA [2]
Synthetic Universal Automatic Transmission Fluid (ATFQT)
Torque-Drive Synthetic Transmission Fluid (ATD1G)
Controlled Slip Differential, Rear Ford......GL-5*
ALL TEMPS......75W-140 [3] [4]
SEVERE GEAR 75W-140 Synthetic EP Lubricant (SVOQT)
80W-140 Synthetic Long Life Gear Lube (FGO05)
Standard Differential, Rear S110, S130......GL-5
ALL TEMPS......75W-140 [4]
SEVERE GEAR 75W-140 Synthetic EP Lubricant (SVOQT)
80W-140 Synthetic Long Life Gear Lube (FGO05)
Standard Differential, Rear Dana 80......GL-5
ALL TEMPS......75W-90 [4]
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
75W-90 Synthetic Long Life Gear Lube (FGRQT)
SEVERE GEAR 75W-110 Synthetic EP Lubricant (SVTQT)
Controlled Slip Differential, Rear Dana 80......GL-5*
ALL TEMPS......75W-90 [4] [4]
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
Standard Differential, Rear Dana 135......GL-5
ALL TEMPS......75W-140 [4]
SEVERE GEAR 75W-140 Synthetic EP Lubricant (SVOQT)
80W-140 Synthetic Long Life Gear Lube (FGO05)
Controlled Slip Differential, Rear Dana 135......GL-5*
ALL TEMPS......75W-140 [4] [4]
SEVERE GEAR 75W-140 Synthetic EP Lubricant (SVOQT)
80W-140 Synthetic Long Life Gear Lube (FGO05)
Differential, Front......GL-5
ALL TEMPS......90
SAE 80W-90 Synthetic Gear Lube (AGLQT)
SEVERE GEAR 75W-90 Synthetic EP Lubricant (SVGQT)
75W-90 Synthetic Long Life Gear Lube (FGRQT)
SEVERE GEAR 75W-110 Synthetic EP Lubricant (SVTQT)
Standard Differential, Rear Ford......GL-5
ALL TEMPS......75W-140 [4]
SEVERE GEAR 75W-140 Synthetic EP Lubricant (SVOQT)
80W-140 Synthetic Long Life Gear Lube (FGO05)
Transfer Case,......MA
Synthetic Universal Automatic Transmission Fluid (ATFQT)
Torque-Drive Synthetic Transmission Fluid (ATD1G)
[2] Beginning immediately all manual transmission applications
requiring MERCON can now be serviced using MERCON-V
or MERCON Automatic Transmission Fluid or dual usage fluids
labeled MERCON/MERCON-V. After July 1, 2007,
MERCON Automatic Transmission Fluid will no longer be
manufactured, therefore, availability of this fluid will
only continue for however long it takes to deplete what
remains in inventory.
[3] Synthetic oil is required.
[4] Add 8 oz. (236 ml) of Additive Friction Modifier XL-3 or
equivalent formulated to meet Ford Spec EST-M2C118-A
for complete refill of limited slip axles.

shipo

Yeesh, I knew it was too good to last. :sick:

Mr_Shiftright

RE: DIFFERENTIAL:

Here are the factory specs for your differential:

Rear Drive Axle/Differential Lubricant
Ford 10.50-inch Axle Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant
Dana 80 axle Motorcraft SAE 75W-90 Synthetic Rear Axle Lubricant
Dana 135 axle Motorcraft SAE 80W-90 Premium Rear Axle Lubricant

NOTE: For Traction-Lok axles - first fill with 8 oz.(236 ml) of Additive Friction Modifier C8AZ-19B546-A or equivalent meeting Ford specification EST-M2C118-A.

RE; TRANSMISSION

You didn't specify manual or automatic, 2WD or 4WD, so I can't say right now what you need until I get more info:

jeffyscott

Another trick that I used to do to my 1983 Plymouth Turismo with a 2.2L engine was to use one quart of ATF with four quarts of oil.

After 178000 miles, the inside of the engine was spotless!

I imagine if you replaced some of the oil with gasoline or some degreasing solvent that'd make for a clean engine too. I don't know that this means that it would be a good idea to do so.

timvipond

Exactly. Have you ever noticed that vehicle manufacturers usually prohibit the use of oil additives and could void your warranty for any affected part if you use them?

Mr_Shiftright

Seems risky and unnecessary to put ATF in your engine.

tommy75

Thanks. Can I use synthetic Rotella 5W40 instead of Amsoil? How about in the 6 sp aluminum tranny?

roadburner

Can I use synthetic Rotella 5W40 instead of Amsoil?

NO!!!

Using any lubricant other than Amsoil will destroy your engine!
In severe cases, your hair may fall out as well!

imidazol97

>your hair may fall out as well!

OMG. I lost my teeth,


now I'll lose my hair.



I put other synthetic brands in my Buick and my Chev.

But the motors seem to be running just fine.
Maybe I'll be the one lucky person who gets by without Amzoil.

timvipond

"Thanks. Can I use synthetic Rotella 5W40 instead of Amsoil? How about in the 6 sp aluminum tranny?" You are welcome. Since Ford does not list 5w-40 as a recommended viscosity, I would say no, unless you ask Shell and they say it is OK and will back it up with their warranty.

roadburner

now I'll lose my hair.

I always pictured you as kind of the Vin Diesel type... :P

But the motors seem to be running just fine.
Maybe I'll be the one lucky person who gets by without Amzoil.

All my cars have Mobil 1 in the sump; I guess that I should prepare for some horrendous repair bills when they start to grenade.

timvipond

"All my cars have Mobil 1 in the sump; I guess that I should prepare for some horrendous repair bills when they start to grenade."

If you are using Mobil 1 5w30, that may not be a bad idea. It severely failed the API required sequence IVA wear testing. Maybe switch to Castrol Edge that states 8X less wear than Mobil 1 5w30.

Mr_Shiftright

I've had great luck with Mobil 1 -- used it exclusively in my Porsches, and did many high speed trips across the desert in 100+ heat. Also in my BMW motorcycle pushing a sidecar. So both these uses were fairly extreme.

I'm not using it in the Subaru because it consumes a fair amount of oil.

timvipond

Mobil 1 is a decent oil. But there are better. Here is Valvoline's findings on Mobil 1 5w30: http://www.lubritecinc.com/PDF/Q%20&%20A%20Doc%204X%20Better.pdf


Valvoline SynPower exceeds the standards that Mobil 1 cannot even meet.





Q: Why should I choose Valvoline SynPower Motor Oil over Mobil 1?

A: Mobil 1 5W-30 DOES NOT MEET the most basic API SM or ILSAC GF-4 specifications. That means
Mobil 1 5W-30 cannot meet basic GM, Ford, Chrysler or Honda specifications. Valvoline SynPower exceeds
the specifications in all of the required tests.

Q: Can you prove it?

Yes. Valvoline and an independent laboratory conducted industry standard wear tests on Mobil 1 5W-30 and
SynPower 5W-30. All tests were registered in accordance with industry standards. The test results show that
SynPower performed 4 TIMES BETTER than Mobil 1.

Q: Aren’t these laboratory tests just that, tests with no real-world relevance to what the automakers require
in a motor oil?

A: Today's vehicles require high quality motor oil that meets certain minimum standards. The current
standards are developed by lubricant manufacturers in collaboration with automobile manufacturers. The
Sequence IVA test “was developed to evaluate automotive lubricant’s effect on controlling cam lobe
wear...” Moreover, this is the test used to evaluate wear performance for certification that engine oil
meets various API and ILSAC specifications. These sequence tests are used to evaluate different
performance characteristics of engine oil and were designed as a substitute for fleet testing. The
minimum specification for today's vehicles is the API SM and ILSAC GF-4 ratings. Of the tests we
conducted, Mobil 1 5W-30 FAILED the Sequence IVA wear requirement for SM and GF-4.

Q: Mobil 1 claims it is factory fill for some automakers. How can they make that claim and not meet the
most basic automaker specifications?

A: Ask your Mobil 1 representative.

Q: Can you provide details of the tests done by Valvoline and an independent laboratory?

A: To meet the specifications for these important ratings, oil must pass several tests. SynPower exceeds the
specifications in all of the required tests. On the Sequence IVA wear test, Valvoline's SynPower 5W-30 has
an average wear rating of 20 microns. To qualify as an SM or GF-4, an oil cannot have a wear rating above
90 microns of wear in the Sequence IVA test. Valvoline and independent laboratory testing of Mobil 1 5W-
30 showed an average of 180 microns of wear. Of the tests conducted, none of the samples of Mobil 1 5W-
30 passed the Sequence IVA wear requirement for SM or GF-4. The attached graph more clearly illustrates
the difference in test results.

So, Valvoline's tests results concludes that Mobil 1 5W-30 does not meet the API SM or ILSAC GF-4
specifications. Further, any oil that does not meet the SM and GF-4 specification could not meet the GM
6094M, Ford WSS-M2C929-A, Chrysler MS6395, GM 4718 (Corvette), and Honda HTO-06 specifications
because meeting SM and GF-4 is a prerequisite to meeting these other standards.


















Q: Must a motor oil be a synthetic to meet SM and GF-4 specs?

A: No. Valvoline's Premium Conventional motor oil, DuraBlend synthetic blend, MaxLife and SynPower
brands all meet the SM and GF-4 specifications.
Avg Seq IVA
Wear
Mobil 1 5W-30
Valvoline
Synpower 5W-30
0
30
60
90
120
150
180
210
w
e
a
r

(
m
i
c
r
o
n
s
)

</= 90 micron limit for
API SM/ILSAC GF-4
180 microns
20 microns
FAIL
PASS

roadburner

If you are using Mobil 1 5w30, that may not be a bad idea.

Yawn...

As a matter of fact, I DO use M1 5W-30 in my 2007 Mazdaspeed 3 work/salted roads beater. I run an @ 5000 mile OCI and I get a Blackstone Labs UOA at every change. Here are their comments at 45,000 miles:

Your oil runs tend to hover around 4,500 to 5,500 miles, and this range appears to be working well for your Mazda. At this point with 8 samples under your belt you can start looking at your unit/location averages, which give the averages for this specific engine. When compared to those, your numbers look good. The oil did not show any signs of harmful contamination (water, fuel, antifreeze). The viscosity read
on target for 5W/30, and looking at the low silicon and insoluble readings, we can tell that air and oil filtration is working well. The TBN read fine at 3.0.

I suspect it will throw a rod within the next few hundred miles... :P

timvipond

Why do you change your oil so frequently at 4,500 to 5,500 miles? Why are you running 5w30 when Mazda recommends 5w20? If it is a turbo, the 5w30 is recommended. Just think of the natural resources you are wasting and the additional pollution you are creating. Some better oils are recommended/warranted for 25,000 to 35,000 mile up to 1 year intervals. Valvoline and Castrol show 4 to 8 times less wear that Mobil 1 5w30 in much more accurate testing that a $20 used oil analysis.

shipo

Only an idiot would be dumb enough to believe that any oil is good enough to protect an engine for 35,000 miles, regardless of the warranty. :P

timvipond

Not any oil can. But one can and has done so for 13 years without a single failure. And if it ever does fail, the warranty pays for the repairs.

roadburner

Why are you running 5w30 when Mazda recommends 5w20? If it is a turbo, the 5w30 is recommended.

News flash: The Mazdaspeed 3 has a turbocharged engine.

Just think of the natural resources you are wasting and the additional pollution you are creating.

I'll admit, those thoughts keep me up nights... :P

Some better oils are recommended/warranted for 25,000 to 35,000 mile up to 1 year intervals.

OK, let me guess; those miracle lubricants are all made by Amsoil and sold by you, right? In any event, what little credibility that you had has been totally eliminated.

Valvoline and Castrol show 4 to 8 times less wear that Mobil 1 5w30 in much more accurate testing that a $20 used oil analysis.

And your disdain for Blackstone Labs is based on what? I'm virtually certain that you'd be praising Blackstone to the skies had I said that their comments referred to a 25,000 mile OCI running Am$oil...

roadburner

Only an idiot would be dumb enough to believe that any oil is good enough to protect an engine for 35,000 miles, regardless of the warranty.

Your opinion is only based on facts observed by actually working in the automotive industry.
You need to listen to the real expert...

jeffyscott

It's getting kinda deep around here, I think I need a shovel

roadburner

It's getting kinda deep around here, I think I need a shovel

Hey buddy, what can I do to put you in this oil today?

imidazol97

>I think I need a shovel

I think we need to remove the advertising bias.

timvipond

"And your disdain for Blackstone Labs is based on what? I'm virtually certain that you'd be praising Blackstone to the skies had I said that their comments referred to a 25,000 mile OCI running Am$oil..."

What gave you the idea that I had a disdain for Blackstone labs? I'm just saying the API approved Sequence IVa testing that was done by Ashland/Valvoline and BP/Castrol is a much better indication of true oil engine wear protection than a $20 used oil analysis. Which the Mobil 1 5w30 was shown to fail miserably. Again and again.

roadburner

What gave you the idea that I had a disdain for Blackstone labs? I'm just saying the API approved Sequence IVa testing that was done by Ashland/Valvoline and BP/Castrol is a much better indication of true oil engine wear protection than a $20 used oil analysis. Which the Mobil 1 5w30 was shown to fail miserably. Again and again.

So in other words, even though Blackstone gives my engine a clean bill of health it is rapidly being destroyed by my use of M1 5W-30.
Got it.
By the way, how many OEMs have dropped Mobil 1 as a factory fill?

timvipond

"So in other words, even though Blackstone gives my engine a clean bill of health it is rapidly being destroyed by my use of M1 5W-30.
Got it."
No, in other words even though Blackstone sees no problems with a $20 oil analysis, you do not know actual engine wear unless you take it apart and measure it, just like API, Ashland/Valvoline and BP/Castrol did to determine the undisputed high wear rates of Mobil 1 5w30 that greatly exceed vehicle manufacturers API requirements. Got it?

I also don't understand why you change your oil so frequently, wasting your time and money, natural resources and more impact on the environment.

roadburner

No, in other words even though Blackstone sees no problems with a $20 oil analysis, you do not know actual engine wear unless you take it apart and measure it, just like API, Ashland/Valvoline and BP/Castrol did to determine the undisputed high wear rates of Mobil 1 5w30 that greatly exceed vehicle manufacturers API requirements. Got it?

You've convinced me; my engine is on its last legs- and at only 52,000 miles...

I also don't understand why you change your oil so frequently, wasting your time and money, natural resources and more impact on the environment.

Now we are back to that tired old refrain. Yes, I know that I could buy an Am$oil miracle lubricant and only need to change my oil every five years, but right now my UOA results and OCI mesh well enough to suit me.

timvipond

I also don't understand why you change your oil so frequently, wasting your time and money, natural resources and more impact on the environment.

"Now we are back to that tired old refrain. Yes, I know that I could buy an Am$oil miracle lubricant and only need to change my oil every five years, but right now my UOA results and OCI mesh well enough to suit me."

So in other words, you don't trust your Mobil 1 5w30 and Blackstone used oil analysis to go over 5,000 mile oil changes. I guess I can't blame you. I probably wouldn't either. That's why I use a much better oil and go much longer on my oil changes, as does hundreds of my customers.

roadburner

So in other words, you don't trust your Mobil 1 5w30 and Blackstone used oil analysis to go over 5,000 mile oil changes. I guess I can't blame you. I probably wouldn't either. That's why I use a much better oil and go much further on my oil changes

You are obviously here to sell Am$oil, so I'd expect you to say that.

timvipond

So in other words, you don't trust your Mobil 1 5w30 and Blackstone used oil analysis to go over 5,000 mile oil changes. I guess I can't blame you. I probably wouldn't either. That's why I use a much better oil and go much further on my oil changes

"You are obviously here to sell Am$oil, so I'd expect you to say that."

I say that because it is the truth.