Spark plugs revisited
#11
Keepin' the lights on!
Thread Starter
#12
decided to pull NGK plugs after 15000kms due to truck going in to get the TSB done for intercooler etc today this is what the looked like
I installed my stock plugs regapped them to .030 see what happens
I installed my stock plugs regapped them to .030 see what happens
#17
Keepin' the lights on!
Thread Starter
Your OEMs gap is too wide. The NGK LTR6IX plugs are better plugs and the correct heat range, your plugs look healthy, stay with those. Ideally, set the gap between .030 and .032" and run mid-grade or better ethanol-blended fuels, Ultra94 if you can find it. Many people will tell you this will kill your mileage but this is misguided advice.
I've been running the NGK LTR6IX plugs gapped at .030" for almost a year now. No misfiring or issues of any kind with the plugs. My truck also ran great with the LTR7IX plugs (one step colder). If I ever switched to a hot tune, then I'd throw the 7s back in.