Castol GTX 5-30 oil and extreme duty Fram filter. If the cost of conventional oil keeps going up I'll be switching to full synthetics.
Castol GTX 5-30 oil and extreme duty Fram filter. If the cost of conventional oil keeps going up I'll be switching to full synthetics.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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