Motor Oil Improves Milage?
 

I put a quart of valvoline motor oil in this morning and read on the package 'improves gas milage' or something along those lines. I don't see how oil affects that sort of thing, but I'm thinking this claim doesn't have much research to back it up.

Also, I think Valvoline has motor oil out for high milage engines (75000+). I may look into that the next time I'm a bit low on oil inbetween changes. Not sure if it'll really make a difference or not, but I dont have a problem giving it a shot.

Re: Motor Oil Improves Milage?
 

[QUOTE]Originally posted by HangMansJoke
[B]I put a quart of valvoline motor oil in this morning and read on the package 'improves gas milage' or something along those lines. I don't see how oil affects that sort of thing, but I'm thinking this claim doesn't have much research to back it up.


Any automotive product that reduces friction between moving parts can claim "improves" almost anything. Have you ever read a label on any product that read, "reduces efficiency", etc. Not likely in this lifetime.

Ron.

Oil pump requires HP to turn. 5w-30 requires less work to circulate as compared to 10w-30 and this translates to improved economy. But your splitting hairs and would probably never see the difference. BTW- They can claim almost anything they want to.