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so i guess a general consensus is castrol syntec is the oil of choice? That one i did see in a 10w-40 5 quart jug for $20 at walmart. Also since i also changed the oil filter during my motor flush would i have to get a new filter when i do my 500 mile oil change or can i leave the one i just replaced still in there?
Btw I use Valvoline 5W-30 synthetic on my civic si, but just thought that mobil 1 would be better for the porsche since that's what it says in the rear trunk. This weekend i'm changing plugs and fuel filter. Bosch iridium/platinum fusion, and napa fuel filter.
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