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superglide · 01-28-2008, 02:12 PM

I've had excellent results with a yearly oil change (Mobil 1), on both my '00 986'S', and my '00 Tundra, but I do change their filters every 3000-3500 miles or so. The Tundra now has 92k on the clock, and the Box is about to turn 50k.

This regime seems to dovetail with a few of the other posts, with respect to filter "build up". At each oil change; the color of the old oil is only slightly darker than the new oil. One of these days, I'm going to send off a sample to one of the labs who do oil analysis, and hope that their report proves me right...

01-28-2008, 02:12 PM	#13
superglide Registered User Join Date: Feb 2007 Location: Tucson, AZ Posts: 52	Oil / Filter Change Intervals I've had excellent results with a yearly oil change (Mobil 1), on both my '00 986'S', and my '00 Tundra, but I do change their filters every 3000-3500 miles or so. The Tundra now has 92k on the clock, and the Box is about to turn 50k. This regime seems to dovetail with a few of the other posts, with respect to filter "build up". At each oil change; the color of the old oil is only slightly darker than the new oil. One of these days, I'm going to send off a sample to one of the labs who do oil analysis, and hope that their report proves me right...