Oil test came back high on metals need advise
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Oil test came back high on metals need advise
My past 4 oil samples have averaged 36ppm aluminum and 39ppm iron. The last test jumped up to 90ppm aluminum and 68ppm iron. I have been sampling and changing the oil every 5,000 miles. What should I do ?? Keep driving or try to find the cause? It runs good as far as I can tell 122,000 miles.
FTE Legend
Joined: Mar 2017
Posts: 31,859
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From: Western NY
More details will possibly help the insightful guys give you possible hints. MY, use, oil brand and weight, any problems in the past, where you live, etc. Try posting it in an oil thread. There's the most recent one right here:
https://www.ford-trucks.com/forums/1...valvoline.html
https://www.ford-trucks.com/forums/1...valvoline.html
Fleet Owner
Joined: Jan 2004
Posts: 26,007
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From: Brentwood,CA
That appears to be a calibration issue to me, 12.6cst at almost 6k? Call Blackstone and have them run the sample again.
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I would agree, the data is better if the lab is the same. However a 90ppm aluminum on a single test run at a reputable lab should be a big red flag. My last truck was a 06 with a 6.0 in it that died at 130,000, just trying to be proactive and figure this out. I can’t afford an upgrade to a newer superduty at the moment.
Mountain Pass
Joined: Oct 2018
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What year vehicle and engine? Ever use fuel additives?
At a minimum, consider changing oil brand (maybe try a 15w40) and changing where you get your fuel, and see what happens next time. Never seen UOAs for a 6.7 quite like yours with the high combo of aluminum and iron. Aluminum is almost never higher than iron in a 6.7.
At a minimum, consider changing oil brand (maybe try a 15w40) and changing where you get your fuel, and see what happens next time. Never seen UOAs for a 6.7 quite like yours with the high combo of aluminum and iron. Aluminum is almost never higher than iron in a 6.7.
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It’s a 2011 6.7l, I do use fuel additives occasionally, mostly in the winter Howe’s lubricator. I buy my diesel by the tanker load and run it through my whole fleet of farm equipment. I usually use 15w40 in the summer months, I tried switching to 5w40 syn to help with wear in the winter months. I have run other oil samples of my farm equipment using the same fuel and oil as my pickup, no problems like this. I think I will run 15w40 for 3000 miles and sample it again, if still high I think I will go pickup shopping.
Mountain Pass
Joined: Oct 2018
Posts: 112
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It’s a 2011 6.7l, I do use fuel additives occasionally, mostly in the winter Howe’s lubricator. I buy my diesel by the tanker load and run it through my whole fleet of farm equipment. I usually use 15w40 in the summer months, I tried switching to 5w40 syn to help with wear in the winter months. I have run other oil samples of my farm equipment using the same fuel and oil as my pickup, no problems like this. I think I will run 15w40 for 3000 miles and sample it again, if still high I think I will go pickup shopping.
