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New oil analysis: World Challenge spec SRT-4: OIL - Redline racing 50W - (15W/50) Total Miles on new engine - 936 Miles on Sample - 336 SAMPLE TAKEN 7/24/10 ALUMINUM 1 CHROMIUM 0 IRON 12 COPPER 31 LEAD 22 TIN 0 MOLYBDENUM 954 NICKEL 0 MANGANESE 1 SILVER 0 TITANIUM 0 POTASSIUM 2 BORON...

Originally Posted By: hooligan24 are you still using leaded race fuel? No we are running 98 or 100 unleaded. Not sure why the lead is still running high, unless it takes longer to clean itself from the engine. -David

So the oil sheared down from 16.8 to 15.1 Is this normal for Redline? I figure 483 race miles is probably further than I should go on an oil change. -David

Originally Posted By: Steve S Is the M1 uoa the first run on the [new/rebuilt] engine? I am unable to tell. The engine is same for both oil analysis's shown above. The engine is original and has 6,500 miles. When we bought the car it had M1 and that is the 1st analysis, which looked bad...

Originally Posted By: casper so which oil is it? m1 or redline? 1st analysis at top of page is Mobil 1 10w-30, 2nd analysis in middle of page is Redline 50w racing oil

Installed new engine, as the oil pressure problem was probably in the oil pump itself. I had a spare new motor, so decided it would be best to install that engine. This is the 1st analysis on new engine New oil analysis: World Challenge spec SRT-4: OIL - Redline racing 50W - (15W/50) Total...

New oil analysis: Archer racing built SRT-4 with stage 3: OIL - Redline 50W racing oil(15w-50) Total Miles on car - 6524 Miles on Sample - 440 SAMPLE TAKEN 5/31/10 ALUMINUM 1 CHROMIUM 1 IRON 9 COPPER 3 LEAD 80 TIN 3 MOLYBDENUM 1047 NICKEL 0 MANGANESE 1 SILVER 0 TITANIUM 0 POTASSIUM 2...

We purchased the truck with about 153,000 miles and this was the 2nd oil change we have performed. We have used Delo oil for both changes, plan to sample again at the next oil change.

I will report back on the other trucks and plan to check this truck again at next oil change. -David

Originally Posted By: deeter16317 Originally Posted By: Gator DavidT is this CI 4 oil or the new cj4 oil, looks like ci 4. I thought "LE" was CJ-4?? Thats what I thought as well, I believe this is the CJ4 spec newer oil. -David

Originally Posted By: Gator DavidT is this CI 4 oil or the new cj4 oil, looks like ci 4. Not sure, we buy the oil from Napa all the time, this oil was probably purchased around Nov or Dec timeframe. -David

Yeah, the truck is worked fairly hard, towing 15K often, but otherwise, not really sure why the iron would be high. We own 4 of these trucks and service them all the same, I am planning to get oil samples for the other 3 on the next change. The only thing we have noticed is this truck seems to...

Any thoughts on how this looks? Miles on truck.........160,000 Miles on oil............3,653 Oil......................Delo 15W-40 400 LE Parameter.......Universal Average 3,653miles.... UOA Results Aluminum.......................3.....................5...

Originally Posted By: OVERK1LL Archer built the motor, was was there reason for oil choice? Have they had good tear-down results with it? Archer built the car originally and campaigned it in Viper Days, then sold the car a few years ago. The major engine mods are mopar stage 3 and big head/cam...

I agree with you, the newer SM spec Mobil 1 is probably not capable of handling the shear in a 500 hp SRT-4 motor under racing conditions. Yeah the Mobil 1 is what we run in my sisters Caravan but probably had no business in the SRT-4. Hopefully the next analysis will improve with the Redline...

Originally Posted By: hooligan24 I still think you should give redline 10w30 a shot and compare. I have about 6 gallons of Redline 15W-50 and 20W-50 so that will be the next oil analysis.

Originally Posted By: addyguy Comparing this to your runs of Redline 50wt and 20W-50, I'd say this is simply one application where you need massive viscosity and additives - this thin, SM-spec oil is destroying your engine! Why would you put a street oil in a race-only application? There are...

Archer racing built SRT-4 with stage 3: OIL - Mobil 1 10W/30 Total Miles on car - 5400 Miles on Sample - 270 SAMPLE TAKEN 10/05/09 ALUMINUM 29 CHROMIUM 7 IRON 83 COPPER 3 LEAD 1084 TIN 0 MOLYBDENUM 91 NICKEL 1 MANGANESE 1 SILVER 0 TITANIUM 0 POTASSIUM 1 BORON 92 SILICON 12 SODIUM 3...

New oil analysis: World Challenge spec SRT-4: OIL - Redline 20W/50 Total Miles on car - 2300 Miles on Sample - 170 SAMPLE TAKEN 10/05/09 ALUMINUM 2 CHROMIUM 0 IRON 9 COPPER 16 LEAD 4 TIN 0 MOLYBDENUM 540 NICKEL 0 MANGANESE 1 SILVER 0 TITANIUM 0 POTASSIUM 3 BORON 44 SILICON 17 SODIUM...

Have you tried tightening the nut in the center of the black cup. This is the nut that tightens the strut to the black cup. Most likely you will need an impact wrench to tighten this nut as the strut shaft will try to spin otherwise, I have used a pair of vise grips and a few shop towels to...