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zonker · 10-20-2022, 03:33 PM

I saw the PF farm video about a year ago and with his results I figured it was at the worst not snake oil and at the best will cut down on engine wear in my older cars.

I added MK to my '89 Geo Metro both in transaxle and crankcase. 6000 miles later I cannot testify that it improved mileage since I have made other changes to the car along the way, but my average mpg has increased and my trans noises in reverse have subsided

Is this because of MK? IDK, but since I substituted the recommended 5w30 for a thinner 5w20, I worry less about frictional damage under hotter temps and heavier loads.

Next oil change I might even go to 0W20

10-20-2022, 03:33 PM	#19 (permalink)
zonker 500 Mile Metro Traveler Join Date: Jan 2011 Location: Sun City, CA Posts: 183 '89 Dakota LB - blue - '89 Dodge Dakota V6 LE 90 day: 19.8 mpg (US) '17 Fiat 124 - SunFiat - '17 Fiat 124 Spider Classica 90 day: 30.51 mpg (US) '89 Metro - The Egg - '89 Geo Metro Base 90 day: 50.71 mpg (US) '94 Alto - The Box - '94 Suzuki Alto Ce-L 90 day: 39.5 mpg (US) Thanks: 14 Thanked 13 Times in 10 Posts	Motorkote?? I saw the PF farm video about a year ago and with his results I figured it was at the worst not snake oil and at the best will cut down on engine wear in my older cars. I added MK to my '89 Geo Metro both in transaxle and crankcase. 6000 miles later I cannot testify that it improved mileage since I have made other changes to the car along the way, but my average mpg has increased and my trans noises in reverse have subsided Is this because of MK? IDK, but since I substituted the recommended 5w30 for a thinner 5w20, I worry less about frictional damage under hotter temps and heavier loads. Next oil change I might even go to 0W20 Last edited by zonker; 10-20-2022 at 03:54 PM..