1992 454 7.4 liter oil
Changing oil Read in book 10w-30 ce/sg was recommended but sea 30 could be used down to 40f Im thinking number 30 is better for hot summer driving and being class A things get pretty dam hot under t...
Forum Discussion
I vote for the Delo. It has or had more zinc which cams from the era and other parts need in abundance. It is real slick for sliding surfaces.
You can buy the zinc additive too.
Real Synthetics are really slick, that is the ones made from Esters, and may not need the zinc but I am not a lubricant engineer or chemist.
The clearances in older engines are greater than new ones, I understand, so same grades as were originally recommended.
Who ever sells whatever, remember, they have the right stuff you need, so check it out yourself. Until then I would run Delo. jmo
You can buy the zinc additive too.
Real Synthetics are really slick, that is the ones made from Esters, and may not need the zinc but I am not a lubricant engineer or chemist.
The clearances in older engines are greater than new ones, I understand, so same grades as were originally recommended.
Who ever sells whatever, remember, they have the right stuff you need, so check it out yourself. Until then I would run Delo. jmo
