Comodave
Moderator Emeritus
- Joined
- Jul 2, 2015
- Messages
- 21,283
- Location
- Au Gres, MI
- Vessel Name
- Black Dog
- Vessel Make
- Formula 41PC
I have twin Lehman SP225s. The previous owner had used Rotella T 15W40 oil for the last 15 years, so I have been using it also. I now see a Rotella T4 as a new version of the oil. Has anyone used the T4 and is this a direct replacement for the old T version? The T4 says it is a heavy duty diesel oil.