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dpevans · 05-30-2017, 11:18 AM

Hogwash. There are some pretty smart engineers. Oil looses it's film strength or the ability to properly lubricate and the loss of film strength can be measured so unless you run your motor at WOT and burn your oil down stick with the car's computer algorithm that that calculates how the car is driven. The manual says when you hit 100% get it changed by the next fill up. I hit 90% then change it. Anything else you are wasting money, and oil resources. 3k mile oil change is a sales tool used by oil companies to get you to use more. Plugs are good for 100k, are you going to change them at 50k? And by the way I also drive a Northstar with 280k and it still runs strong.

05-30-2017, 11:18 AM	#12
dpevans Drives: 2024 Riverside Blue 2SS 1LE Join Date: Mar 2016 Location: Fort Wayne, IN Posts: 1,357	Hogwash. There are some pretty smart engineers. Oil looses it's film strength or the ability to properly lubricate and the loss of film strength can be measured so unless you run your motor at WOT and burn your oil down stick with the car's computer algorithm that that calculates how the car is driven. The manual says when you hit 100% get it changed by the next fill up. I hit 90% then change it. Anything else you are wasting money, and oil resources. 3k mile oil change is a sales tool used by oil companies to get you to use more. Plugs are good for 100k, are you going to change them at 50k? And by the way I also drive a Northstar with 280k and it still runs strong. Last edited by dpevans; 05-30-2017 at 11:50 AM.