A5B5 is a one size fits all for non scr/nox gas and diesel small engines. 5w20 in that is one size fits all along with more fuel economy than the earlier spec of 5w30.
True Mustang says 5w20 for street applications but if someone drives a mustang like a soccer mom driving a kia soul I’d be surprised so a thicker weight oil won’t be a bad idea. Just go with a good 5w50.
True Mustang says 5w20 for street applications but if someone drives a mustang like a soccer mom driving a kia soul I’d be surprised so a thicker weight oil won’t be a bad idea. Just go with a good 5w50.