In that I mean if they were meeting API/ILSAC they were offering what all engines needed from them?
I recall years ago, many probably, when it seemed like there was night and day difference between oil brands. Where Pennzoil was a step up from QUaker Satte, and both were infinitely better than say SuperTech, but now it seems as if the biggest difference is marketing, especially if you're following manufacturer's requirements.
Even Ford tells me that using synthetic will offer my engine no more protection than using semi-synth, which you'd think, from a financial perspective, they'd tell it's customers that they should opt for that additional level of protection like the oil brands do.
So back to my original question, does anyone recall when it was that all the brands started offering pretty much the same everything (protection, etc.) that engines needed. I'd think maybe it was the late 90s perhaps.
I recall years ago, many probably, when it seemed like there was night and day difference between oil brands. Where Pennzoil was a step up from QUaker Satte, and both were infinitely better than say SuperTech, but now it seems as if the biggest difference is marketing, especially if you're following manufacturer's requirements.
Even Ford tells me that using synthetic will offer my engine no more protection than using semi-synth, which you'd think, from a financial perspective, they'd tell it's customers that they should opt for that additional level of protection like the oil brands do.
So back to my original question, does anyone recall when it was that all the brands started offering pretty much the same everything (protection, etc.) that engines needed. I'd think maybe it was the late 90s perhaps.