Unclewolverine
NAXJA Forum User
- Location
- Kansas
I've been running rotella for about a year, but now that it's getting cooler in the mornings my cold start lower end knock is coming back. I'm thinking about switching to a 10w40 or maybe something even lighter. Any suggestions? Gotta stay cheap, I have to change my oil every 3-4 weeks and redline or expensive synthetic would dig into my bottom line. I run a mobil one m1 301 filter and currently have 60 psi highway speeds, 18-20psi hot idle oil pressure.