RadioShackSpecial
NAXJA Forum User
- Location
- Michigan
Over the weekend I switched to Rotella 10w30 from Valvoline High mileage full syn and the knock at idle seems to be louder. The reason I switched was from lots of comments in regards to Rotella for its ZDDP content.
So my question is should I switch back? Anyone had this problem?
Specs: '96 XJ with 180,xxx.
So my question is should I switch back? Anyone had this problem?
Specs: '96 XJ with 180,xxx.