I rolled over 70K last night, and i am about to take a fairly long trip in the truck and want to maximize the fuel econ, and performance..

Wondered how long everyone went prior to changing plugs?
(this is from a maintenance standpoint, not because you boosted it or anything)


How many miles does your nnbs have on it?

 

plugs are normally good for 100k nowdays with the platinum plugs.

 

100K and I think they're plated with iridium if I'm not mistaken.

 

I changed mine every 30-40k miles for N/A (10-15k now that I am boosted). I used TR55 at .055" (N/A) and TR6 at .035" (supercharged). They are only about $18 and fairly easy to change with the right extensions, so for me, it's inexpensive peace of mind. Just my $.02

 

120k on mine & the gap had increased to .005 over the stock gap. So I'd think 100k would be a perfect time to change them..

 

Not to thread jack or anything but what about Tranny and Dif. Fluids?

 

I changed them out at 8500 when I went to boost. Changed them out again at 12000 when I went to more boost....

 

i had to change mine out at 82,860miles.slugish power and bad fuel economy,after i changed them out it was like a new truck again.

 

They say 100k on factory plugs, I would do it at 80k. Just my $.02 That said, on the boosted AV, I could open a set of TR6's up .010" in 10k.

 

Agree. You might not have to change them out but every 100k miles, but I guarantee you will notice a difference in idle smoothness, fuel economy, throttle response and quickness if you changed them at 60k.