Mechanics

ENGINE OIL SELECTION

2003 Holden Calais • 80,000 miles

Can I use a 5/40 Castrol Oil in the car , Currently running a 5/30 oil
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Ashley Milliken
September 29, 2011.



It will not ruin your car, but hopefully you would run the 40 in the summer and the 30 in the winter.

ProAutoTech
Sep 29, 2011.