My friend has an 82 Mustang with a 5.0. From our research, this engine has a flat tappet motor like the 83 motor in my RX7. He however is using his for daily driving. It was recommended for mine being used for track to use something such as Mobil 1 15w50 or something else with higher levels of zinc.
In the case of a daily driver that will see some fun time, we have two things we want to try, we are thinking either going straight 5w40 HDEO such as Delo or Rotella or going with 4 quarts M1 5w30 (maybe HM if it is worth it for the extra Zinc) with 1 quart 15w50.
What say ye members of BITOG?
In the case of a daily driver that will see some fun time, we have two things we want to try, we are thinking either going straight 5w40 HDEO such as Delo or Rotella or going with 4 quarts M1 5w30 (maybe HM if it is worth it for the extra Zinc) with 1 quart 15w50.
What say ye members of BITOG?