Originally Posted by dsc
Use whatever weight the manual says to use. If the manual says 5W-30 it's because the clearances in the motor are designed for that viscosity. Using a heavier oil will result in reduced oil flow. Why would you want that?
Also, why is the motor using oil after only 50K miles? Is it a leak issue or a oil burning issue?
im positive its not a leak, its just consuming it. it was very minimal but now its about 1qt every 1k miles.