Quote:
Originally Posted by OldNewb
I've used both...on a range of vehicles with varying mileage. Synth will get you an extra 1000 miles between changes. But, it's more expensive than reg. A matter of personal preference when all said and done. Reg-every 3000-4000 miles vs Synth every 4000 miles. Be religious about your air filter changes too. I own a 96' Dodge Ram pickup and recently had to pull the left cylinder head off to replace an exhaust valve. I changed the reg oil every 3000 and the cylinder bore still showed good cross-hatching.
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You change your oil way too much. Even the low mileage rated synths you should get 5-6K out of. More important to use a quality filter. Not a FRAM.