J jennifer lee Guest Oct 20, 2009 #1 the shop guy was 5w30 is that bad? my van was starting to sound like an airplane, the guy said my oil level was very low.. he filled it with 5w30, i am afraid the oil in it was 5w20, is mixing bad?
the shop guy was 5w30 is that bad? my van was starting to sound like an airplane, the guy said my oil level was very low.. he filled it with 5w30, i am afraid the oil in it was 5w20, is mixing bad?
