Hello all, I have some questions regarding the results of my second UOA using Valvoline HM 5W-30 oil after 3,500 miles. I'm particularly interested in the slightly elevated lead levels detected.
To provide some background, I was recently troubleshooting an intermittent transmission/misfire issue in my vehicle. This problem, which didn't trigger any DTCs, eventually led me to identify severely worn spark plugs as the root cause. However, prior to discovering the faulty spark plugs, I attempted to address the misfire with a relatively aggressive treatment of fuel system cleaner. Over approximately 3,000 miles, I added a total of 32 ounces of Techron fuel injector cleaner in an effort to resolve the issue.
My concern is that this substantial amount of fuel additive might be responsible for the slightly increased lead reading in the UOA. Could the Techron have contributed to the elevated lead levels, perhaps by interacting with deposits within the engine? I would appreciate your opinion on this possibility and any insights you can offer regarding this unexpected finding.
Also, the engine runs smooth with fresh wires, spark plugs, Bosch air filter, and new timing belt and WP! It’s also worth noting that this sample was ran with an oversized Fram Force 3600 that added at least 22 ounces on top of the factory spec'd 5.5 quarts.
Your input is greatly appreciated!
To provide some background, I was recently troubleshooting an intermittent transmission/misfire issue in my vehicle. This problem, which didn't trigger any DTCs, eventually led me to identify severely worn spark plugs as the root cause. However, prior to discovering the faulty spark plugs, I attempted to address the misfire with a relatively aggressive treatment of fuel system cleaner. Over approximately 3,000 miles, I added a total of 32 ounces of Techron fuel injector cleaner in an effort to resolve the issue.
My concern is that this substantial amount of fuel additive might be responsible for the slightly increased lead reading in the UOA. Could the Techron have contributed to the elevated lead levels, perhaps by interacting with deposits within the engine? I would appreciate your opinion on this possibility and any insights you can offer regarding this unexpected finding.
Also, the engine runs smooth with fresh wires, spark plugs, Bosch air filter, and new timing belt and WP! It’s also worth noting that this sample was ran with an oversized Fram Force 3600 that added at least 22 ounces on top of the factory spec'd 5.5 quarts.
Your input is greatly appreciated!
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