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Thank's for the response guys. I thought it was rather average myself, but that is good news. The truck has lost a little coolant over the summer (intake gasket?). I was also expecting it to fall out of viscosity, it almost did. I will be putting in Schaeffers and doing a 5,000mi run with it...

This is my girlfriend's S-10 4.3 vorteck. The truck has 118,000mi total, 5000 on the sample. Normal driving, no towing, no abuse copper-------7 iron---------27 chromium-----0 alumium------4 lead---------15 molybdenum---108 phosphorus---948 zink---------1085 magnesium----26 calcium------2171...

Chris B. My piston slap was when the motor was cold. Like starting a cold diesel, knocking slightly above idol rpm. It would quit after it was about halfway warmed up.

I have a LS1 also. It's a 2000 TA ram air 6spd. I bought it in 2001 with 9,500 mi. The piston slap and oil consumption was horrible. I went to my local Pontiac dealer, they looked at me like I was from outter space. I started reading LS1.com and found it was common and could be helped with oil...

Lightman, I have a 03 HO 6spd. I went to Schaeffer's 15W40 at 7,500 mi. I just did first analysis 11,000 on the truck. It came back verry nice. This is my 2nd Cummins and I have used a lot of brands of oil over the years, Shaeffer's is the shiznit.

Patman, Just checked my report, they are measured in %. Sorry I missed the small print the first time. The report is from Schaeffer's. Thank's for catching that Patman. 4 Ram Tracks

This is the first oil analysis on the 03. 11,084 on the truck 3,585 on the oil, Schaeffers 7000 15W40. The truck is a HO 6spd, light towing 3200lbs weekends. coppper----8 iron-------12 chromium---0 aluminum---3 lead-------0 molybdenum-82 phosphorus-1105 zinc-------1198 magnesium--8...

My 2003 Dodge 3500 Cummins HO, 7500mi towing, 15000 light duty

Guess what, they use Fram filters Package is brutal on the equipment. An average route has 80 to 140 stops. Every time the driver steeps off the truck it's shout off. All stop and go, rush hour, light to light. Engine overhaul is when they go boom. Our cars have 4.3v6, powerstrokes, Cummins...

In Nashville we use Pennzoil. The package car service interval is 3000 mi. The pmi interval on my Mack is 25,000 mi The Mack service manual has three intervals. 50,000, 30,000, or 700 hrs. We don't do uoa's.