Originally Posted by Johnny T
What type and grade of oil do you use? I use Royal Purple 5W30, I was thinking of going to 10W30, will the 10/30 harm or do anything to my motor and will my car run the same? I only drive my R in the summer.
I use 5W30 Mobil 1.
Originally Posted by Johnny T
I was thinking of going to 10W30, will the 10/30 harm or do anything to my motor and will my car run the same? I only drive my R in the summer.
According to the ITR owner's manual, you can use 10W30 as long as the temperature is over 20 degrees F. But it says that 5W30 is still preferred at ALL temperatures.