One mechanics opinion about oil
Is fancy expensive oil worth it?
Forum Discussion
IMO...just go with your OEM's recommendation and note that normally there are two service levels/schedules. Don't follow your OEM's recommendation...yup it is a free country...then your OEM can deny warranty if an oil based issue arises if you did not follow their recommendation
One is for mud hens and other for severe duty. Towing is severe duty
Me...change it when one of three things happen
#1 Oil PSI either fluctuates or drops...means the oil is breaking down
#2 Oil consumption...means the oil is breaking down
#3 depending which vehicle, number of miles since last change
Not a fan of oil analysis....rather spend that money on high spec oil and filters. I'll do it if suspect something is up, but to date have not done so...know it is time to rebuild my big block...soon. It still runs well, does not consume oil (unless beat the poop out of it), but the PSI is down a bit (idle is +45PSI and at speed +70PSI...down from +50PSI idle and pegged at highway speeds)
Material science has really improved everything, including oil...but still add molybdenum disulfide (<2 micron) every once in a while...have some tungsten disulfide powder, but haven't had time to do a good test cycle yet.
One is for mud hens and other for severe duty. Towing is severe duty
Me...change it when one of three things happen
#1 Oil PSI either fluctuates or drops...means the oil is breaking down
#2 Oil consumption...means the oil is breaking down
#3 depending which vehicle, number of miles since last change
Not a fan of oil analysis....rather spend that money on high spec oil and filters. I'll do it if suspect something is up, but to date have not done so...know it is time to rebuild my big block...soon. It still runs well, does not consume oil (unless beat the poop out of it), but the PSI is down a bit (idle is +45PSI and at speed +70PSI...down from +50PSI idle and pegged at highway speeds)
Material science has really improved everything, including oil...but still add molybdenum disulfide (<2 micron) every once in a while...have some tungsten disulfide powder, but haven't had time to do a good test cycle yet.
