What is the normal change out period? I am not sure I have seen it
anywhere in writing. I also own a 1993 Dodge Mini Caravan with 150K
miles and runs fine and have never changed the plugs. MB now has 100K
and suspect it is time to change the plugs as I am picking up a little
"stumbling" lately which doesn't come up as a diagnostic "code alert".
I used to change plugs every 10K miles on older 1960 type
cars.Thanks.
Larry
Larry
