Is Champion the best plug for 99' DII?
- Thread starter Roverfire
- Start date
seventyfive said:
It's hard to poke holes in my practice.
When I hop in the Rover, I know everything will work. Every time. I've nothing to worry about.
Cheers,
Kennith
kennith said:When I hop in the Rover, I know everything will work. Every time. I've nothing to worry about.
Cheers,
Kennith
That's the mantra I've been using as well....so far so good!
$3 a plug and 1/2 hour of time. Keep in mind I manage a shop so I have time and materials and I'm very very OCD about maintenance.agthird said:
seventyfive said:
Depending on use, 6,000 miles is not always obsessive. If you use copper plugs, idle frequently, and spend lots of time at low revs, the things shit up and wear down more quickly.
Under those conditions in times past, people would file the electrodes to bring the flat (and thus the edges) back, and also remove carbon deposits. I've done it and seen it done in other places. Plugs are so cheap and readily available here, though, it makes more sense to change them.
Cheers,
Kennith
we've put PMO three barrel carbs on 911's and the supplier explicitly states 3000 miles on the plugs, NGKs ( I believe they are for a Mazda of all cars). I figure with the amount of fuel our trucks waste may as well treat them as if they are carb'd and swap the plugs every other oil change.
We can tell our customers commute by their plugs, and like you said the stop and go sitting in traffic ones always have worse looking plugs than highway commuters.
We can tell our customers commute by their plugs, and like you said the stop and go sitting in traffic ones always have worse looking plugs than highway commuters.
Where did I say we tell our customers to change their plugs every other oil change? I said I change MY plugs every other. Would you really tell a grease monkey to go fuck themself? Sounds like a good way to get a couple of your teeth knocked out.
JohnB said:
Whether or not they would be right depends on how your vehicle was used since your last oil change, and how it will be used until your next.
It's the same for the oil changes.
There should exist for every vehicle a general maintenance schedule. That schedule, however, must be adjusted when extremes of operation are experienced.
Cheers,
Kennith
I can get the Champion double platinum plugs for $1 more/plug than the standard NGK's or the NGK platinum plugs for $.60 more per plug. Won't the platinum plugs last longer under the same driving conditions(mostly city)? If so it would seem like they would be the more cost effective way to go.
Last edited:
Roverfire said:
Yes, but so will iridium, and it's a platinum group element that doesn't suck. Under city driving conditions, I'd personally focus on thin wire center electrodes.
Don't bother counting pennies over spark plugs. You only need eight.
Cheers,
Kennith
We use Champion Double-Platinum 7318 plugs that we import from the US of A. The current set has done 50k miles as of last weekend and still OK.
Regarding the gapping, the outer electrode does distort with heat on ours, but we run LPG fuel which the plugs are good for.
We set 0.9mm gap but find that the outer legs will distort and widen this somewhat, so now we slightly undergap them.
We've been away with the Ruston engine and trailer these past few weekends so haven't had much time online.
Peter
Regarding the gapping, the outer electrode does distort with heat on ours, but we run LPG fuel which the plugs are good for.
We set 0.9mm gap but find that the outer legs will distort and widen this somewhat, so now we slightly undergap them.
We've been away with the Ruston engine and trailer these past few weekends so haven't had much time online.
Peter
NGK. Its the only plug I will ever use. When I got my D2 it just had a tune up done but it still had a miss here and there. Pulled the champion plugs and replaced them with Copper NGK's. The NGK's fixed the miss issue. I like some other replace my plugs every other oil change. Thats just me. I change my plugs on my Evo every oil change.
i run NGK copper in the disco. they've been changed 3 times since i've owned it. i've owned it 3 years.
i run NGK Iridium's in both my Max's, they get changed every 2 years.
i run NGK Iridium's in both my Max's, they get changed every 2 years.
riceybean said:
His engine is thirteen years old. Even if it runs well, it's been around a long time. The RV8 likes to complain when not used properly, and the RV8 complains with carbon.
His coils may be original, or may have been replaced some time ago. If he's running factory replacement plug wires, it adds to the problem. Either way, his ignition system likely isn't at the top of it's game.
Now, consider this:
Platinum is the least conductive center electrode material available in spark plugs today. So, given the gap choices he mentioned, which makes more sense?
Cheers,
Kennith