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Old 03-06-2012, 08:50 PM   #34 (permalink)
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Join Date: Mar 2012
Location: Murfreesboro,Tenn, about 30 miles east of Nashville
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AJ, not to keep plugging Amsoil, but they have an excellent oil analysis program which goes hand in hand with their 25,000 and 35,000 mile oil change intervals. Check out their website. redorchestra, you do not have to drain the oil to change the filter. Many people who run Amsoil for 25-35,000 miles will change their filters at half way through the oil change interval and top off the engine with the quantity of oil that their filters hold. If your oil filter is mounted vertically on the engine then it is always best to fill it with oil before installing it. That way your oil pressure will be almost immediate upon start up after the oil and filter change.
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