TonysMI4

I change my plugs every oil change (1000) miles . I'm on E85 using amsoil. Im at 24 torque because you never know

Billman250

Is there something about the E85 that is fouling the plugs or making them unsafe? Aluminum threads have a service life. They can only be pulled on and released so many times before they let go. 1000 miles is extreme for plugs, and oil for that matter.

OEM plugs can go an honest 80k miles.

TonysMI4

Not for the oil its not. Read up on the e85 threads and you'll find that e85 eats away at the oil (gas in the oil) and oil changes should be around 1500 miles but I get my oil and plugs at cost so I don't mind doing it at 1000. Also I don't DD my car anymore so takes alil longer to hit 1000 miles. Didn't know there is a service life on the threads. Maybe ill change every other oil change.

2003AP1

Hmm so 20-22lbs on a 3/8s wrench is more realistic? I currently only have a 1/2 torque wrench need to get me a 3/8

hariku821

So I did the compression test and at first the numbers were all over the place 175 165 160 190 so we test them all again and get 175 165 160 240.. I thought wait 235 is really close to honda spec so we do them all again. This time 240 240 240 235.. Not sure if it took me doing it 7 times to figure out what I was doing or what but they kept reading 240 240 240 235....


I followed the procedure in diy sticky exactly..


So what now.. Am I in the clear?

Billman250

On the first two tests, is the cylinder with high compression the one with the bad plug?

hariku821

No the one with the bad plug was 165 the first couple times.