× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Valvoline SynPower 'HST' & 'MST' & (neither) Labeling
Posted to Technical Discussion Forum on 6/10/2011

[...trimmed text...]

NO!

However, the A5/B5 approval indicates that it is a better product than the conventional Castrol product. It is NOT dexos 1 licensed so you still must depend on the voluntary integrity of Castro... Login to read more.

Files Referenced:

thumbnail