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1) 5W30 vs. 10W30?
2) What oil should I be using to minimize premature wear?
3) I live in TX where temps can be from the teens up to 110 degrees. Should I run a different oil seasonally?
Thank you very much for your help on a subject I have yet to understand. I am interested in cost-independent and cost-dependent answers if possible, also. Appreciate your help!
I would also hazard a guess that the auto cross is demanding on the engine. If you can do it use a good SL 10W-40. Europe requires that weight in order to past what I understand is a tough oil durability test. If your engine can take it, you should consider the sturdier oil.
Mobil/Amsoil 15W-50 for Races and then drop down to 10W-30 or maybe during Summer keep it in.
Delvac 1 5W-40 all the time. This may be the best option. High Zinc levels-good protection.
I would not change back and forth between mineral oils or between different syn brands. Also personally, I prefer 10W-30 year round (syn) even in Pa.
Filters-I like K&N, Mobil 1, Hastings in that order.
You have to realize that racing and long engine life are not really compatable (IMHO).
The company/brand seems to be little known, but fairly well respected on these boards.
Perhaps you'll get some comments from brorjace on this topic; he seems to hold the Filtech Honda filters in fairly good esteem.
http://www.toyoroki.co.jp/english/company/enkaku.htm
http://www.murphyoilcorp.com/
The real test is how your vehicle runs on the gas. If you haven't had any problems then go for it. You can use some of the money you save on a bottle of fuel injector cleaner every once and a whileif you feel it's needed.
Good luck
Charles
In the St. Louis market, QuikTrip dominates and controls the prices in the market, even though they don't do any refining. Their stations are clean, well lighted, staffed with polite employees who are not alone, and are used by cops to write reports and get free coffee. That's a lot more reassuring than the Sinclair (are they still in business?) station with the sleeping dog out front and the pumps from the 1970's.
I would assume that Sams moves a lot of gas. That should be enough for you.
As far as the oil, I had a feeling that I should definitely be going heavier. 5W30 and 10W30 are the oil weights recommended in the manual. What does going beyond these weights help me with? I am more interested in running a milder, safer setup than a drastic, high-weight oil. Competition isn't great enough for me to run a separate oil for a race.
Is the quality of an oil filter just as important as the oil itself? Is PureOne the best, readily-available filter for my application?
I've heard bad things about Mobil 1's new formula as well as Castrol's synthetic although keep hearing good things about Redline and Max-Life Valvoline. What is Delvac?
Am I really beyond a frequently-changed conventional oil? Please recommend any setups for me that you think would work. Thanks for the great answers so far.
Delvac is a Mobil product. I believe it's targeted at diesel owners, both consumer and professional (truck drivers). Pretty sure there's a 'regular' petrol-based Delvac and a true synthetic, called Delvac 1 or something.
Tonight I saw a 4-gallon case of Delvac 15W40 at Sam's Club for $22. That's about $1.40/quart. From what the guys say here, Delvac is pretty good stuff, if you're in the market for a slightly thicker oil: I'm not aware that they make it in the thinner (0/5/10W30) grades.
Guys, what are the pros and cons of Delvac? It is believed to have a good additive package to keep things clean, plus lots of anti-wear zinc, right?
http://www.fram.com/home/index.html
However, I wonder if drainage through the small valve orifice would be less thorough than drainage through the normal drain opening? Any comments would be appreciated. Has anyone here tried this system?
However, it too has a smaller opening then the normal drain plug. However, all you get is a thinner stream of oil coming out, seems to be not a big deal, perhaps slightly longer to drain out but I let mine go overnight so a few more minutes doesn't affect me.
Thin oil cuts down on fluid friction and helps get better gas mileage,,,the mfgrs are heavy on that issue.
Thicker oil has more fluid friction and will theoretically cut down on gas mileage,,,,you may not be able to measure the difference,,,but it protects the metal MUCH better than the lightweight oil does.
The hotter the outside temps, the less the first number counts....5w may be required at starting temps of -25f, but the 15w is fine at starting temps above about -15f,,,,,point is who cares about that detail during the summer (or even the winter where I live).
The 40 or 50 wt oil protects metal better than the 30 wt does, but will cut down on gas mileage some. Diesel rated oils have more detergents and more metal protection compounds too.
You can get some insight about this oil by going to:
http://www.sae.org/servlets/index
and doing a search for "2000-01-1993"
That is an SAE paper (submitted by Mobil) which describes the development, properties and testing of this oil. It will cost you $10 and it is on line instantly for you to load/read. Its 14 pages. You also can do a search for "synthetic" and find this document and other interesting documents on synthetic oils.
Also additional information is at this Mobil site:
http://www.mobil.com/mobil_lubes/onhighway/resource/index.html
Check FAQs for Delvac or Delvac 1300 super.
Perhaps someone can shed some light on other Brand name Diesel Engine Oils.
Anybody know what the "Del" stands for?
TGIF
see ya
Rando
I don't doubt your assessment of Sinclair in the St. Louis area. You should come out here to the Rocky Mountain area and see that Sinclair is a top grade player in the superior product market. They build new stations and renew old stations out here!
More basic questions about things that I thought I understood:
Would a 10W30 be an improvement over 5W30 when run hard even though they both have the same viscosity under stress?
Can someone "class" the oil filters for me to understand what I am looking at?
Doesn't the first number in an oil's weight represent its thickness at start-up and the second number its thickness at running temp?
Everytime I post this, I get sarcastic remarks about "crunchy or creamy" but I think this is a good rationale for using thinner oil.
http://www.salemboysauto.com/faqs/faq-29.htm
BTW-- I've always favored 10W30 as a good compromise, but I am seriously considering going to a heavier weight or adding STP when the current SL grade is usurped by the newer "converter friendly" classification next year.
Not being rude to Csandste but I disagree with the SALEMBOYS,,,comparing peanutbutter and sewingmachineoil is like comparing oil and grease. (3 in 1 oil is a 10wt oil (says it on the can) and the peanutputter would be like grease ,no comparison there)
Oil wt is stated like this, for example, 10w/30 is a 10wt oil with viscosity improver that causes it to not thin any more than a 30 wt oil would at higher temp,I believe they consider the higher temp to be 100c but I am not positive about that.
Viscosity improver is a large molecular wt polymer that is coiled up at cooler temps and uncoils (expands) at higher temps, therefore it behaves like a small molecule and then behaves like a large one at higher temp.
STP contains ZDDP and VI so it helps oil act like a heavier wt oil. Problem is the polymer breaks down eventually into smaller molecules and stops helping out (also degrades into detrimental varnish/crud/junk so don't use it for extended drain intervals or very long in engines with high heat issues).
I use STP in one of my trucks so don't think that I am in any way negative about it, just respect the conditions for use and you will be ok if you choose to use it.
The manufacturers NEED to get the best average fuel mileage out of their vehicles so they do whatever they can to help, and the 5w-10w/30 contain friction modifiers to help with "being slick" but it does not seem any other weights use it, not sure why on that one.
Thicker wts of oils have higher viscosity (resistance to flow) therefore they pump slower at low temps (therefore a major issue during wintertime startups, ok after warmup though)...at temps above freezing even 20w50 pumps just fine, and the heavier oil protects metal much better than the thinner oils do,they just have more resistance to flow and cause a little less gas mileage, sometimes not even enough for you to measure in normal driving.
It depends on what you want in the oil, mfgrs NEED the extra mileage, and you may too, but engine longevity can use some thicker oil. Most folks these days do not buy a vehicle intending to keep it till it falls apart, they would put the priority on better fuel economy.
see ya
Good morning
Rando
I've been using it for about a year and my oil consumption, which was about 1 quart in 4-5,000 miles, has returned to no noticeable change on the dipstick in over 6,000 miles.
Use a decent filter, nearly ANY filter would be better than Fram. For our cars, I recommend the Filtech OEM (Blue) factory filters. These are made in the USA. The crappy Fram OEM filters are made in Canada and when I chopped one open and looked at the cheap innards, I gave the rest of 'em away.
I use a Hastings filter (#LF-402) which I think is decent because I can't get Filtech filters in quantity anymore. I wouldn't use a Pure-One for racing. It's a good filter but can restrict oil flow at high RPM in some applications. A K&N oil filter might be a better choice here.
--- Bror Jace
Thus far, it sounds like I will be going with 10W30 Redline street and a K&N oil filter for my daily driving/racing duties. I think I may buy one of those Fram oil remover kits just because it looks like a great idea. Please correct me if I am wrong so far.
However, I have a couple more questions:
1) How reliable is the info on the "peanut butter" site?
2) What are the best places to order things such as Redline fluides and K&N filters? Direct from the manufactures?
3) I have never run a synthetic oil. What change intervals am I looking at with Redline and how will I know when to change?
4) I am wondering which conventional oil to put in my "beater" car. Is Valvoline (and its conventional and Max-Life formulas) the best bet or are all convetional oils very similar?
I appreciate all of your help.
1. as for the peanut butter site? those guys are "nuts"
2.3. don't know
4. I use Havoline conventional, change every 3k miles and use A.B.F. filters. I use the STP with 10w/40 oil in my 182k mile truck
You won't hear many people pull for using heavier oil than 10w/30 these days, I'm kind'of a rogue on that subject-but I firmly believe in using thicker oil..
best of luck to you
see y'all
Rando
I also have a 97 Grand Cherokee with about 92,000 that I’ll be using the Moly in, but it’s my wife vehicle so I don’t have MPG numbers for it. Neither vehicle uses any noticeable amount of oil between changes – usually 3,000 miles but sometimes 4,000 when I’m lazy.
I drive between 2,500 and 2,800 miles per month so it won’t take long to get some MPG figures. The Explorer runs pretty quietly anyway and has never had any noisy start-ups, so I don’t expect to hear any differences there. I’m mostly hoping to extend the engines life but any improvement in mileage would be a plus.
I’ll report in when anything comes up.
http://www.manhonda.com/store/honda/index.cfm?level=35&CFID=660066&CFTOKEN=96247352
Haven't ordered here but others have
Conventional oil: Havoline, agree with zr2rando here. Also I do use the K&N but they are probably overpriced. But, what the hell.
I'm seriously considering going to a heavier weight oil or adding STP, especially when the current SL grade is replaced next year. I just replaced 5W30 with 10W30 in a Cavalier with 75K. Threw in some Wal-Mart imitation STP too. The only time I used 10W40 I blew the engine. However that was a Ford Festiva that was abused by the original owner. Got 110K with 10W30 and put in a junkyard engine for $300 that was going strong when I gave it away at 160K. Wish I'd kept that car, I liked it a lot. I doubt if the 10W40 was the cause, but that incident does give me second thoughts. I always thought 10W30 was the ideal weight for most applications, but with the bogus STP I'm probably running 15W40.
I'm also more favorable to trying a 15W40 when the standards change than going with a 10W40.
However, Salem's advice to go with 5W30 or 10W30 is mainstream advice which matches most of the posts at the beginning of this forum if memory serves me correctly.
I do think the peanutbutter analogy is overstated.
http://www.auto-motor-oil.com/
Pretty good price.
When you guys say, "I use [insert oil] and STP," are you talking about an STP oil additive? Are there any other engine cleaners/additives that are worth using?
Haha, what I meant about the "nuts" guy was that if you guys thought the rest of his advice was pretty sound on other topics. It seems to be on my side. Is the main problem some of you have with him is his oil analogy? Isn't the overall recommendation okay?
What a great discussion.
My existing supply of SJ Mobil 1 5W30 will be used up in about 6 months. Once it's gone, I have no plans to go back to synthetic oil and the prices associated with it.
I'm at the point where my level of knowledge leaves me unconvinced that true synthetic is worth the extra money for me. I'm not willing to spend more time, beyond following these boards, to learn more.
We drive our cars fairly gently, in fairly moderate temperatures (rarely below 10F or above 90F here in SE Mich.), and I just don't think the extra protection, or the potential for extra protection since I'm not really convinced of that, is worth the money in our situation.
It just seems like the thinner weights of the new SL oils are getting better and better and closing the performance gap on synthetics, while the price gap remains quite wide and is not narrowing.
1) That peanut butter analogy is overstated to a ridiculous degree. It would only apply if someone was advocating you pumping #2 GP grease into your crankcase. He should have used something like corn oil vs. molasses or honey or gravy, etc ... to compare the different weights of oil ... and even that is a stretch.
2) I have been buying Red Line from that auto-oil.com guy previously mentioned. Overall he's competeent but like a lot of on-line sellers, he doesn't answer his e-mail enough unless it specifically involves an order. I have also gotten stuff from Manhonda.com which is a dealership in Manchester, CT. I don't buy K&N oil filters on-line. I bought one locally from one of the big-box auto supply stores. Generally, I think they are overpriced (about $10 each) but they will give your car a healthy supply of oil.
3) Since you race, I wouldn't stretch the interval past 5,000 miles without lab testing. I use Blackstone Labs but there are many out there.
4) The line is blurring between "Conventional" and "Synthetic" oils and Valvoline Max-Life is an example of that. It has a base stock that most other brands call "synthetic" and has a potent additive package ... for only $2 per quart. Not bad at all. >:^)
As for SL oils, there is less difference between that brands as there ever has been.
If you know you are using a good oil, DO NOT use an oil additive. STP is not what you want in a high-RPM engine as it will shear down quickly. Use the weight you want of Red Line and know that Red Line has a VERY ROBUST anti-wear additive package. None of us would be able to improve on it by playing "Mr. Wizard" with various bottles of store-bought goo.
--- Bror Jace
PS - You might also like www.Honda-Tech.com
(:oÞ (:oÞ (:oÞ
gregb882: Thanks for the update on the moly. How much do you add per quart of oil?
As you know I don't have a problem with the STP itself, but the "conditions for use" would not include racing/constant high heat/high rpms etc.
IF you want to use oil thicker than 10w/30 then just use thicker oil in that situation. I use STP but I don't race.
I am just a normal driver, my main goal is engine/vehicle longevity rather than high performance driving.
I use Havoline conventional oil, will probably use Chevron Supreme after I use the Havoline up.
With the Chevron/Texaco merge both are on the top of a high quality list of auto products, I have not seen shady marketing practices from them like I have some others.
good morning everyone
Rando
The maxlife type oils have extra additives like the zinc metal protection, and seal swellers etc,,,so they do not meet the API certifications.
Just because it does not carry the seal does not mean it is bad oil, in this case it is just the opposite. You add some STP to any API certified oil and you just de-certified it, know what I mean?
Maxlife is doing pretty good according to most of these Edmunds folks..
see ya
Rando
Also a subnote, Maxlife is now api SL certified as I went to the parts house and verified it on the bottle. I have a virgin sample of the old max life analysis but not the new api certified one. So, I'd speculate that the zddp levels are now within the api limits, but also the 10w40 maxlife's additive antiwear package seem to rival REDLINES with a whopping 290ppms of Moly.
Bob, wow, sorry to hear about Max-life having such a weak additive package. I would think that well-worn cars would allow more blow-by and need a BETTER anti-corrosive package to deal with more byproducts of combustion and fuel contaminated oil.
Well, for $2 per quart, I guess you can't expect it to be excellent in every category!
--- Bror Jace
I have been trying to classify in my mind what oils and filters are worth using in each price range (racing or not) and have been trying to rank them:
OIL
-cheap-
Chevron
Havoline
Valvoline?
Valvoline Max-life
Mobil 1?
Redline
Amsoil?
-expensive-
OIL FILTERS
-cheap-
Pure One
K2?
Hastings
Mobil 1?
K&N
-expensive-
I think some things may be wrong. Please correct me.
my son has a honda odessy 2002 it calls for 5w-20
the manual states that you can use 5w-30 in a pinch but not twice in a row. I'm a big believer
in the owners manual
also valvoline makes a 5w-20
parts stores like nappa has a policy if they dont carry it they will special order it for you