When something says "synthetic blend", is there a requirement for a minimal percentage of at least Group III (synthetic) base stock?
I did hear that Pennzoil dexos1 Synthetic Blend is 50% synthetic, yet how do we know others aren't just 10% synthetic, like this SuperS ?
Of course to be a dexos1 you have to be a synthetic blend at least, but thats another story, and still doesn't say what percentage will do it.
I did hear that Pennzoil dexos1 Synthetic Blend is 50% synthetic, yet how do we know others aren't just 10% synthetic, like this SuperS ?
Of course to be a dexos1 you have to be a synthetic blend at least, but thats another story, and still doesn't say what percentage will do it.