GM4718M does add additional requirements beyond SM/GF-4. However, I believe passing all SM/GF-4 requirements is a prerequisite to GM4718M approval. Therefore, any oil that does not meet SM/GF-4 cannot meet all the requirements of GM4718M.
wgtoys said:The way we knit-pick oils on this forum, seeking the best.....don't we all want the product that give the absolute lowest possible wear?
i think we want the product that is the most cost effective solution. if we all wanted the best oil, period, there is RLI out there at 10 bucks a quart, or some other boutique oils at even more. M1 @ a little under 7 bucks is a cost effective way of getting 10k with a good synthetic. as i have said before here, the fact it also passes GM4718M makes me believe this is all bunk.
but i have been wrong before....
No one can say what we "all" want. We all want different things. Some use Super tech some use Redline.
Some do not want the most cost effective solution.