I've been running Valvoline VR1, but admittedly as a "racing oil ", have wondered if it contains any detergent. Anyone know? Or if there are any detergent oils available with higher zinc content?
SAAC Member Badges are NOW available. Make your request through saac.memberlodge.com to validate membership.
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
Show posts MenuQuote from: gt350hr on November 02, 2020, 04:10:49 PMQuote from: 6T6/7 on November 02, 2020, 01:27:56 PM
I run VR-1 10W-30. 20W-50 is too high viscosity than needed or should be run in a street driven engine imo.
That is very dependent on locality and bearing clearances. Some current engines "demand" 5-20 because of their clearances.