It seems there would be a point where a company benefits more from exceeding the spec by some margin greater than the variability in their forumlating process to ensure they don't flunk the API spot checks. However, maybe Valvo has the variability down to a minimum.quote:
Originally posted by Terry:
Ashland/Valvoline has one of the finest engine stand test cells in the world and they are good at doing just enough to get the consumer lube to pass spec.
In my reviewing the tech data sheets (at least the old SL sheets) the Valvoline oils looked pretty good for cold properties--except for All Climate. I was not impressed with All Climate in that respect, nor flash point.quote:
Originally posted by Terry:
V oils are extremely good after engine is running and at operating temp. Until recently their lower lines of oils were terrible cold pumpers with absolute lowest EP protection that they could skirt by with.
Who knows, Valvoline might be a much improved product in GF-4 form. Bitog is going to have to re-evaluate all the conventional wisdom now that SM and GF-4 will be main-stream.quote:
Originally posted by haley10:
Hopefully, I wasn't too harsh on Valvoline All-Climate. I was speaking of all the SL stocks still available and earlier SJ etc.
Now with SM GF-4 coming on, I'm reserving all judgements based on past experience.
I have a goodly supply of GF-3 syn to use up, so I'll let everybody else find out how good SM really is.
I think Haley has a real solid comment.quote:
Who knows, Valvoline might be a much improved product in GF-4 form. Bitog is going to have to re-evaluate all the conventional wisdom now that SM and GF-4 will be main-stream.
I would get the Maxlife. That is a very good price. Last I looked at the Valvoline site, Maxlife is OK to use in new cars.quote:
Originally posted by farrarfan1:
... 5 quart jug of Maxlife for $8.44 ($1.68 quart) ... Now if somebody can tell me that Maxlife is OK to use in new cars...