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Petroleum or Synthetic oil for my pickup truck?
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Comments
Is Mobile 1 high detergent?
intend to keep vehicle 10-100 years go with the
Mobil 1/filters...
Pocahontas
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Pickups Message Board
in that viscosity! Auto Zone had no oils AT ALL of that type!!!! HELP! I am sure I can substitute 5W-30 in Mobil1, but am worried my gas mileage will get worse than the 12mpg I now get?
HELP!
I will probably use Mobile1 5W30 synthetic.
If I could figure out where to E-Mail a Ford engineer about this I would!
If you run lighter weight oil (5w20 VS 5w30) you will get a small increase in MPG. I heard Ford uses the 5w20 oil to improve MPG. Maybe someone who has used both oils can speak up.
I know when I use 10w30 in my Silverado (instead of 5w30) it lowers my mileage by almost 1 MPG - I plan to stick with the 5w30 per the owners manual
About 5 months later I decided to try Amsoil's motor oil (10W-40) and filter. Gas mileage up to 27.0 mpg and did not drop. That's a 4% increase. So I tried Amsoil's auotmatic transmission fluid and it went up to 28.3 mpg, another 4% boost. I did not have any problems with leaving the oil in for 23,000 miles either.
The oil got dark but I had itchecked out with a company called Oil Analyzers, Inc.
Check out this site for an interseting, pretty much non-scientific look at oil filters. http://members.nbci.com/minimopar/oilfilters.html
-- Don
as for the 5w20 issue on fords, they are using a sequence IIIe twice the normal for ensuring they have a quaility oil, which they don't want you to run anything more than just that. the big reason is CAFE, "corporate average fuel economy". the lighter the oil the less resistance giving you a better fuel effeciency. in honda's they state that if you don't have 5w20 you can substitute with 5w30. but to change back asap.
lets understand, the difference between 5w20 and 5w30 is they both start out as a 5w oil, with viscosity improvers put in that when it gets to a 100deg C. the oil will take on the charateristics of a 20 or 30w. when the oil gets into what is known as a shear zone, the oil will shear back to a 5w in those areas and lubricate the same in either case. so if you cannot find a 5w20 suitable for your needs and 5w30 will suffice.
hope that sheds some light on the subject.
bob in jville fl.
www.bobistheoilguy.com
I've been told that the clearances are tighter on the motors negating the need for higher viscosity. Besides, with all the auto companies scrambling to squeeze every last mpg for CAFE, wouldn't they all just say run the lighter oil???
My 2001 Civic owners manual says to use 5W20, and if 5W20 isn't available then 5W30 is acceptable, but to change back to the 5W20 "at the next oil change." It doesn't say to change back ASAP, but at the next oil change. The Honda recommended oil change intervals for "normal service" is 12 mos or 10,000 miles. Hmmm, what does that tell you? It tells me that the 5W20 recommendation is only to increase the CAFE ratings, not because of any changes to internal engine tolerances, etc.
That's my $.02 worth.
Again I'll repeat, The V10's at 8800+ GVW don't even have CAFE #'s.
Are you sure the manufacturer of the V10's in the 8800+ GVW vehicles recommend the 5W20 in those vehicles? I don't know. Further, are you sure those vehciles don't enter into the CAFE "calculation?" I don't know that either.
I was also told on my '97 Cobra (4.6 DOHC 4 valve 7000 RPM motor that shares its heritage with the V10)by the dealer not to run over 30 wt. because of the smaller oil passages and tighter clearances. I mistakingly ran 5-50 on the Cobra's first oil change. The car received 2 oil changes in its first 1200 miles if for nothing but peace of mind.
tc, the owners guide states;
"SAE 5W-20 engine oil is recommended. Only use oils "Certified for gasoline engines" by the American Petrol............."
Goes on to say not to use additives.....
No mention of an alternate wt. oil.
http://members.nbci.com/minimopar/oilfilters.html
This nonsense needs to stop NOW.
PF Flyer
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Cylinder walls are made of cast metal because it is porous and soaks up oil that then feeds back to the surface if some small spot get missed by splash during one or more strokes. Polymer powders in suspension in the oil clog up these pores, and accellerate wear on the rings.
Individual's experiences may report different results, but I'll take the words of lubrication experts, and not put that stuff in my engines.
Harry
HAD to by a $10 filter though(K&N). It was either that or a Fram.
There has been a problem with wrong dipsticks I read some place?..also heard that the 8.1 uses a quart a month?
make me wonder about getting one....the cold start knock was something I had hoped to not get in the 8.1
- Tim
Offered to replace the pistons....but I ain't letting nobody take apart my new engine when it's not doing any harm.
- Tim
cowboyjohn
I haven't heard any cold knock either out of this thing....lucky maybe???
Later
Bob
-- Don
Peter
-- Don
every 5K, magnetic drain plug is spotless, oil dark honey color at every change
and dipstick is at full mark prior to change.
97% freeway miles at avg speeds of 68-74 mph. Vehicle has 30K trouble free
miles. Hope to keep 25 years or more. GM puts Mobil 1 in all 350 Vettes,
if good enough for vette, should do fine for my lil pick-up
-- Don