Originally Posted By: BobsArmory
Originally Posted By: RiceCake
Easy. Mobil has money. They bought into Dexos. That simple really. Most oils would likely meet Dexos anyhow, they just don't pay for the testing.
Yep just like all those VW, JASO-MA and BMW specs are worthless. You really posted a reply like that??
I don't think that's what RiceCake meant. To my understanding, dexos1 and dexos2 are the only large-scale oil specifications that are licensed. That is, bottlers must pay General Motors a licensing fee to print the dexos1 or dexos2 logo on the bottle. I don't believe any of the other specifications, including the various Volkswagen and BMW specifications, require licensing fees.
As noted before, dexos1 doesn't appear all that difficult to meet. It looks very similar in nature to ACEA A1/B1. Most synthetic blends and synthetics meet it. It does appear, however, that most conventional-labeled oils do not meet either (ACEA A1/B1 or dexos1). I don't know the NOACK requirements in either of the dexos specifications, if there are any, but each of the ACEA specifications require a NOACK of less than 13%. This is likely why many conventionals don't meet it.