99 E450 v10 28.3 Eagle I'm mystified
I bought it back in Dec. 2015. It had 32,000 miles on it. It had some startup noise in the engine, not leaking plugs or exhaust, A cold cast piston or timing chain rattle that went away after a few seconds, it also had a timing knock at part throttle. Using mid grade or premium stopped most of the timing rattle. I switched to 10w30 and a Mobile 1 oil filter to help the start up knock, did I mention it used around a quart of oil every 1000 miles. OK 11,000 miles later after I switched back to a ford brand oil filter and 5w20 oil, no more startup noise. It also quit burning any oil and doesn't rattle on regular. Could the timing rattle be caused by the 10w30 oil getting past the low tension rings used in these V-10's. It's all I can think of that could cause it.
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