Gentlemen, the owner manual for a '99 Explorer(4.0 SOHC) with a 3.73 LS rear axle calls for synthetic 75W-140 plus friction modifier. I'm not one to deviate too far from from the manual for my own amusement, but is that thick of an oil really needed?
The two vehicles in my sig(both use rear 8.8 axles and I'm runngin synthetic 75W-90) call for 80W-90. Which makes me wonder why the Explorer would benefit? It will not do any towing or otherwise be submited to anything too demanding. Your thoughts? Just curious.
Thanks!
The two vehicles in my sig(both use rear 8.8 axles and I'm runngin synthetic 75W-90) call for 80W-90. Which makes me wonder why the Explorer would benefit? It will not do any towing or otherwise be submited to anything too demanding. Your thoughts? Just curious.
Thanks!