Quote:
Originally Posted by chris719
We'll agree to disagree.
I just clicked a Walmart listing for Pentosin FFL-4:
Offers lifetime performance
The only one speculating here is you, who are speculating that Pentosin can't meet lifetime fill specs with any amount of Group IV. The problem is, you have no idea if that's actually true because you aren't a chemical engineer that works for Pentosin. If the fluid couldn't be safely used for lifetime fill, the dealers would have to be told this. Instead, the retail bottle says it is a lifetime fill. Say whatever you want, I would bet all my money that the factory fill and retail product is the same for these DCT fluids.
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What is lifetime?
Only people who know what is lifetime fluid are:
1. Engineers in BMW (and accountants).
2. People who determined exactly what mileage is lifetime.
To offer lifetime fluid that might be majority GrIV, is good marketing.
But it is nit lifetime. Liqui Moly also claims that German cars require German oil, but no German manufacturer uses their products. But they can vlaim whatever they want.
Also, BMW fluid is really not lifetime, bcs. ZF would strongly disagree with it, and they do.