Forum Discussion
Geeze
Mar 11, 2021Explorer
The 5.4 also had the spark plug seizing in the head problem. I don't think I would attempt a spark plug change in any aluminum head unless the engine wasn't running right. Changing the oil in a truck engine every 3,000 miles is a good idea. I change the oil in my Class C V-10 every 2500 miles which is once a year to and from my winter destination. I use a Motorcraft filter and Mobil 1 oil.
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