Jiminthekeys
Petty Officer 3rd Class
- Joined
- Aug 7, 2012
- Messages
- 83
I got a few free gallons of mercury racing synthetic 4 stroke 25w-50 oil and I am wondering if this would be safe to use in my mercruiser 3.0l or should I sell it and just stick with the 25w-40 I've always used? I live in the Florida Keys and summer temps are 90 and above with winter temps 80-85