Is this safe to use to increase fuel efficiency? See link

[rnrn]

Have heard good things about Amsoil in the past and have used in my truck before. I have a warehouse not far from here and would like your opinions about running this oil at the next change...

Ross

Amsoil 5W-20 Synthetic

[Tiger]

Amsoil is alot of money... You need 8 quarts to do your car... which will probably run you $70. Majority of us just use Mobil 1... 10W30 or 0W40 preferred. As for increase in fuel mileage, I don't notice any increase in fuel mileage.. however I do a much better acceleration performance... the engine is much more livelier.

[rnrn]

Amsoil runs about $6 a quart, making it approx $10 more than Mobil 1 per change. So $30 a year maybe worth it if I can get an answer that running 5W-20 is ok in our e34s, mine's a 540 in particular.

[DueyT]

Ross, I use Amsoil in my TDI from time to time (that and Mobil Delvac 1) but I would have questions about the hot-temp weight of 20. Cold temp is OK...as Tiger noted, 10W30 (and more rare 0W40 which I run year-round) Mobil 1 are the favourites. For my own taste, 20 seems a bit low, especially for summer driving.

Mein 2 ¢

Cheers,
Duey

[632 Regal]

dont go 20 wt, thats piss thin. youd be better off going dino oil 20w 50 than 0w 20 anything. Just my oppinion. As for Amsoil I have nothing to say negetive, as long as you follow your basic weights (not 20wt). Use common sence mann

as for mileage increase average is about 2-3 mpg highway from a dino 20w 50 vs a mobil one 5w-30 or 0w-40.

change filter as required friend.

[rnrn]

Thanks for the input. I already use 5-30 Mobil 1 but was curious if the 20 wt could add a mile or two per gallon. It may, but unless I had a confirmation from somewhere other than Amsoil (duh) I am not going to use it. Ill stick with what works...

[632 Regal]

Thanks for the input. I already use 5-30 Mobil 1 but was curious if the 20 wt could add a mile or two per gallon. It may, but unless I had a confirmation from somewhere other than Amsoil (duh) I am not going to use it. Ill stick with what works...