Turbo guys: used oil analysis (UOA)?
10-02-2008, 04:27 PM
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Turbo guys: used oil analysis (UOA)? Anybody here submit their used oil for Blackstone (or similar) analysis? I have my report and I'm looking for something relevant to compare it with.
Rich
Rich
10-03-2008, 03:53 PM
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Really? Nobody? There's quite a bit of metal in my oil (Royal Purple XPR 20W50).
1998 Trans Am with a forged/dished piston lower compression LS6 motor from A&A Corvette. This motor has about 10k miles on it now, roughly 8k of that is with a T67 front mount turbo that (of course) uses the engine oil for lubrication. It runs at about 11 psi on the street and uses an AlkyControl kit plumbed about 10" in front of the throttle body. There's also a large FMIC on the car. Tuning is custom 2bar speed-density. Coolant is DI water with water-wetter. Dino oil was used to break-in the setup prior to going with the RP. So here's the Blackstone comments/report:
"Universal averages show typical wear levels from this type of engine (stock) after about 4500 miles on the oil. High metals are coming from a combination of wear-in and the methanol-injected turbo. Copper is very high; it may indicate a problem at the turbo (or another bronze part). Heat damage can be seen in
zinc and phosphorus levels. Silicon is likely from sealers and lubes applied at assembly. 1.0% fuel was found, but this is not a problem level. We aren't sure if this engine is simply going to make a lot of metal due to the methanol, or if there's a problem."
Aluminum 19
Chromium 6
Iron 85
Copper 228
Lead 16
Tin 0
Molybdenum 123
Nickel 3
Manganese 2
Silver 0
Titanium 6
Potassium 3
Boron 5
Silicon 74
Sodium 12
Calcium 3110
Magnesium 109
Phosphorus 1072
Zinc 1976
Barium 2
SUS Viscosity @ 210F 79.5
cST Viscosity @ 100C 15.41
Flashpoint in F 365
Fuel% 1.0
Antifreeze% 0
Water% 0
Insolubles% 0.3
1998 Trans Am with a forged/dished piston lower compression LS6 motor from A&A Corvette. This motor has about 10k miles on it now, roughly 8k of that is with a T67 front mount turbo that (of course) uses the engine oil for lubrication. It runs at about 11 psi on the street and uses an AlkyControl kit plumbed about 10" in front of the throttle body. There's also a large FMIC on the car. Tuning is custom 2bar speed-density. Coolant is DI water with water-wetter. Dino oil was used to break-in the setup prior to going with the RP. So here's the Blackstone comments/report:
"Universal averages show typical wear levels from this type of engine (stock) after about 4500 miles on the oil. High metals are coming from a combination of wear-in and the methanol-injected turbo. Copper is very high; it may indicate a problem at the turbo (or another bronze part). Heat damage can be seen in
zinc and phosphorus levels. Silicon is likely from sealers and lubes applied at assembly. 1.0% fuel was found, but this is not a problem level. We aren't sure if this engine is simply going to make a lot of metal due to the methanol, or if there's a problem."
Aluminum 19
Chromium 6
Iron 85
Copper 228
Lead 16
Tin 0
Molybdenum 123
Nickel 3
Manganese 2
Silver 0
Titanium 6
Potassium 3
Boron 5
Silicon 74
Sodium 12
Calcium 3110
Magnesium 109
Phosphorus 1072
Zinc 1976
Barium 2
SUS Viscosity @ 210F 79.5
cST Viscosity @ 100C 15.41
Flashpoint in F 365
Fuel% 1.0
Antifreeze% 0
Water% 0
Insolubles% 0.3
Looking forward to the results. About how long did it take to get your results?
10-03-2008, 09:10 PM
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$22.50 for the analysis. It's a no-brainer; they send you a little collection tube and shipping container. I shipped it UPS to them so it could be tracked. Turnaround was about a week from the day I sent it to them. They emailed me a .pdf and sent a hardcopy via snail mail. Wish I would've gotten these done from the very start on this motor, especially for baselines prior to installing the turbo. Oh, well.
