Jackson_Slugger
$50 Site Donor 2022
My father's Taurus with a Vulcan has had 5W-30 Mobil HM in it for over a year now (he doesn't drive much), it's fine. As previously stated these engines predated the use of 5W-20. I'd prefer 5W-20 better overall on a newer lower miles model but either is fine and of course if your using oil 5W-30 is the natural progression...