I have been inspecting/cleaning and regapping my NGKs at 100 hours and replacing at 200 hours for 6 years and 700 hours now on my 912uls with no problems. I use non-ethanol mogas almost exclusively.
My 912ULS, with total time of about 182 hours has been running about 170 degrees F. Today, I had one at floating from 117 to 132 and the other about 170. I do run 50/50 coolant.
Thoughts as I have not noticed a significant difference between these 2 cylinders?
This website uses cookies to manage authentication, navigation, and other functions. By using our website, you agree that we can place these types of cookies on your device.
You have declined cookies. This decision can be reversed.
You have allowed cookies to be placed on your computer. This decision can be reversed.
This website uses cookies to manage authentication, navigation, and other functions. By using our website, you agree that we can place these types of cookies on your device.
