Need a ride.
Join Date: Jan 2010
Location: Berks County Line, Pa.
Re: Rotella 5w40 good for 110 degree heat?
Another "you'll be fine" using synthetic 5-40 Rotella, use it year round here. I extend my oil changes to 8000 miles but doing so a lab test of your oil would be a smart thing.
03 F-250 7.3 XLT CC SB Auto 38R, S-B Intake, 4 inch MBRP Duals, Regulated Return, J Wood VB, DP Tuner, Isspros 3 Pillar, Terminator Scan Gauge, DS Coolant Filter, HPX