Originally Posted By: dlundblad
Originally Posted By: Quattro Pete
Full list of dexos specifications is included in this handbook:
https://www.aftonchemical.com/Lists/Brochure/Attachments/40/Specification_Handbook.pdf
I most likely missed it, but isn't one spec a 50/50 synthetic blend?
Only syn blend that actually says 50% SYN and 50% Convential on the bottle is Penzoil Syn BLend.
Benefits of Pennzoil® Synthetic Blend dexos1™ Motor Oil
Specially formulated for use in all GM vehicles
Helps prevent sludge and other damaging deposits
Provides proven wear protection
Controls high-temperature oxidation and deposits
Contains at least 50% synthetic base oil for added oxidation stability, improved volatility and low temperature properties
Backed by the Pennzoil Lubrication Limited Warranty
I do not think the rest are 50/50 or Im sure they would state it.