suthernoutlaw
NAXJA Forum User
- Location
- PassChristian, MS
i put a 98 4.0 in my 91, it had 26k miles on it...bought as a rollover. my question is, does the change in weight of the oil affect the noises? i heard a little bottom end noise when i had 10w40 so this change i went 20w50. now i hear it more than before. should i run a lighter oil, i thought the heavier would be better.....