JB MARSHALL
Active Member
HI everyone, I'll be changing my transmission oil soon the marina where the boat was previously stored used non-detergent 30w oil, anyone using non-detergent? is it better than the Rotella T1 or the Chevron Delo, any input is always appreciated!!!
Cannot speak for the non-detergent. I have always used Rotella 30W and see no need to change now after 7 years.