Originally Posted by dave1251
Originally Posted by paoester
Platinum wins, specifically for your DI turbo engine.
Not a lot of difference. Platinum has the slight advantage in base oil, being GTL group3+, somewhat better.
A google search on Kendal GT-1 Max
https://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1700629 says it has performed very well in wear tests, at least in the original Titanium-enhanced formula back in 2009, now slightly revised for SN+ LSPI tests.
Both are LSPI-resistant, great for your turbocharged engine. Platinum does LSPI tests in both Ecoboost and Ecotec turbos, doubling down on the tests.
Platinum also passes the GM oxidation test and the Turbocharger Coking Test, very nice to have.
Basically the dexos1 Platinum will have the advantage in most or all of the new dexos1 Generation 2 tests:
---- General Motors Oxidation & Deposit Test (GMOD) verifies the improved oxidation and deposit control characteristics.
----Stochastic Pre-ignition Test verifies the added protection for turbocharged engines and pre-ignition concerns.
----Turbocharger Deposit Test verifies the added protection for turbocharged engines and minimizes deposit formation, which ensures optimal performance during engine life.
--- Aeration Test (bubble control) ensures the air bubbles in the oil dissipate quickly to improve oil performance.
You are aware Kendall GT-1 DEXOS passes the same tests and Pennzoil uses key terms such as "up to 50% cleaner", "unsurpassed". Not it always is 50% or even it always cleans anything superior each use and unsurpassed means no company can claim superior but all can claim just as well.
Thought about that type-of-answer earlier today but, honestly, the OP asked about GT-1 MAX. Not that I think it's inferior to dexos in practical performance - currently running GT-1 MAX in my truck - but it's not relevant to his question.