06-14-2007, 12:57 PM
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Ultimate Warrior
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Join Date: Apr 2002
Location: Pleasant Grove, Alabama
Posts: 8,412
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Quote:
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Originally Posted by 77birdman
Just got back my oil analysis for my 2003 Toyota Tundra 4.7L V8 with 65,000 miles on it. It holds 6.5 qts of Mobil 1 5W-30 with a Toyota oil filter. I ran the oil for 10,000 miles and sent it in for analyis. Here is the summary they sent me, this shows you can go extended intervals:
You wouldn't know the engine had 65,000 miles on it from looking at the wear data.
Universal averages show typical wear metals for oil from this type engine after about 5,565 miles run
on the oil. We don't know how long your oil was in use but we found all wear at around average levels
and in the correct balance to show normal mechanical parts inside. Air and oil filtration appear normal.
The viscosity was slightly high but there was no gas or anti-freeze in the oil. The TBN was 3.3, still
going strong.
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Do you post on Tundra solutions forum?
__________________
frittering and wasting the hours in an off hand way....
1969 GTO, 455ci, 230/236 Pontiac Dude's "Butcher Special" Comp hyd roller cam with Crower HIPPO solid roller lifters, Q-jet, Edelbrock P4B-QJ, Doug's headers, ported 6X-8 (97cc) heads, TKO600, 3.73 geared Eaton Tru-Trac 8.5", hydroboost, rear disc brakes......and my greatest mechanical feat....a new heater core. 
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