Hello everyone, I have a 2017 Ford F250 Powerstroke with the Sterling 10.5” 3:31 e-lock rear, with just about 60,000mi, I would say a good 75% of the miles are towing, either a fifth wheel camper, skid steer and car trailer, or a snowmobile trailer.
Looking in the owners manual I see it calls for a 75w-85 synthetic, would anybody be scared of using a 75w-90 in this case? I use a lot of Schaeffers products in my vehicles, have always seemed to have good luck with them, currently running their OTR Plus 5w-40 in the engine.
I’d really like to use Schaeffers or the High Perf Lubricants I’ve been reading about on here, but am a little nervous with it calling for such an odd spec, was actually surprised when I seen the lower grade in the owners manual for a Super Duty, my last truck was a F-150 and it called for 75w-140 in the rear!
I also noticed looking up a previous gen 2011 Super Duty with a Sterling 10.5” it does call for a 75w-140 as well, what do you think changed? The E-Lock?
Thanks in Advance!!
Looking in the owners manual I see it calls for a 75w-85 synthetic, would anybody be scared of using a 75w-90 in this case? I use a lot of Schaeffers products in my vehicles, have always seemed to have good luck with them, currently running their OTR Plus 5w-40 in the engine.
I’d really like to use Schaeffers or the High Perf Lubricants I’ve been reading about on here, but am a little nervous with it calling for such an odd spec, was actually surprised when I seen the lower grade in the owners manual for a Super Duty, my last truck was a F-150 and it called for 75w-140 in the rear!
I also noticed looking up a previous gen 2011 Super Duty with a Sterling 10.5” it does call for a 75w-140 as well, what do you think changed? The E-Lock?
Thanks in Advance!!