It's a bad state of affairs, so much smoke and mirrors being used that no one knows where they are. The only options are to make your own risk assessment as to whether an aftermarket oil/fluid is likely to stuff your car, or pay the over inflated prices for 'genuine' fluids in the hope of the risk being lower. Even then, I'd only purchase over the counter and not trust a service centre to put the right product in.
I'm a long standing fan of Penrite for most things, but have also encountered the odd inconsistency in the past. I didn't know about the HOAT vs. OAT example, but it's damned unforgivable IMO.
I'm a long standing fan of Penrite for most things, but have also encountered the odd inconsistency in the past. I didn't know about the HOAT vs. OAT example, but it's damned unforgivable IMO.
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