Checking Generator oil question
Hello! I have an onan 5500 gas generator in my motorhome. A question that has always bugged me, when checking oil, when I unscrew cover and look at level it's always lower than when I screw it back on...
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The second one. Trapped air in the chamber where the dipstick is could prevent the oil from coming completely up to the true level on the dipstick. Removing the dipstick allows the oil to come up to its true level.
