Are the OEM plugs really able to go 100k?
00 intrigue spark plugs.
- Thread starter gonzo
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yes!
Platinum and iridium tipped plugs can go the distance.
Should I go back w/OEM or try another brand?
it depends what OEM you have. I normally go OEM but have strayed... Autolite actually makes Motorcrafts (Ford) and also makes Splitfires (I dont like those) many Asian use Denso or NGK - but I have also used Champion platinums in those apps.
I would think AC-Delco?I'm not sure what part# they are but I'm about 3,500 miles away from yankin'them out.will be interesting to see what they look like.
If they had been good since '00, I would definitely go back with OEM's.
I have heard that often times spark plugs become difficult to remove after 80-100,000 miles of heat cycling. At one time mechanics recommended removing and reinstalling to minimize this potential problem. Anyone here with hands-on-experience with stuck plugs at high mileage? Ed
I personally never run the plugs to 100k. Even if they can make it , as the plugs age and the gap increases you are working the ignition system harder. Why risk expensive ignition parts for cheap spark plugs? I feel they should be changed by 75k for this reason + the fact about the plugs maybe getting stuck. Would hate to ruin an alum. head because of plugs.
Originally Posted By: Eddie
I have heard that often times spark plugs become difficult to remove after 80-100,000 miles of heat cycling. At one time mechanics recommended removing and reinstalling to minimize this potential problem. Anyone here with hands-on-experience with stuck plugs at high mileage? Ed
That is true, some do remove, check and reinstall the plugs. My opinion is if I am going thru the whole trouble of removing the plugs I sure am not going to put the OLD one's back in.
I have heard that often times spark plugs become difficult to remove after 80-100,000 miles of heat cycling. At one time mechanics recommended removing and reinstalling to minimize this potential problem. Anyone here with hands-on-experience with stuck plugs at high mileage? Ed
That is true, some do remove, check and reinstall the plugs. My opinion is if I am going thru the whole trouble of removing the plugs I sure am not going to put the OLD one's back in.
Double plats or double iridiums are great .
Sometimes, factory plugs only have precious metals on only ONE tip for waste spark ignitions [+to- or -to+].
Sometimes, factory plugs only have precious metals on only ONE tip for waste spark ignitions [+to- or -to+].
Also, when you replace them, coat the threads thinly with anti-seize! That way next time they will be easier.
I'm actually kind of apprehensive about my Highlander and changing the plugs. I have the OEM replacements, but my fear is that they've never been changed since the manual states 100k miles. They are Iridium plugs.
I'm actually kind of apprehensive about my Highlander and changing the plugs. I have the OEM replacements, but my fear is that they've never been changed since the manual states 100k miles. They are Iridium plugs.
In my 2003 Saturn ION, the factory AC platinum plugs were misfiring at 70,000 miles. I have iridium AC plugs now, but with only 2,500 miles on them, I can't say how long they will last. My version of the Ecotec uses a waste spark ignition.
My dad's 1997 Lexus ES300 only got 60,000 miles out of each set of Denso platinum plugs that were unique to Toyota. He had the Toyota waste spark ignition which looked like 3 coil on plug assemblies with 3 regular looking ignition wires going to the back. I put NGK Iridium plugs that Toyota allowed in a TSB when the odometer reached 120,000 miles. He sold the car at 160,000 miles, so I can't say how long the iridium plugs lasted.
My mom's 2005 Jeep Grand Cherokee has 72,000 miles on the factory plugs and everything is working fine. The car uses 1 coil per cylinder, but I don't know what type of plugs are used.
My dad's 1997 Lexus ES300 only got 60,000 miles out of each set of Denso platinum plugs that were unique to Toyota. He had the Toyota waste spark ignition which looked like 3 coil on plug assemblies with 3 regular looking ignition wires going to the back. I put NGK Iridium plugs that Toyota allowed in a TSB when the odometer reached 120,000 miles. He sold the car at 160,000 miles, so I can't say how long the iridium plugs lasted.
My mom's 2005 Jeep Grand Cherokee has 72,000 miles on the factory plugs and everything is working fine. The car uses 1 coil per cylinder, but I don't know what type of plugs are used.
Avoid Bosch plugs,junk and do not last in GMs.Found this was a cause in a Chevy S10 Blazer,would not start and the plugs were junk.The plugs were not to old also.Someone else put in Bosch plugs,piched them and ran great with AC Delcos.Jeeps use Champions since it is a Chrysler product,stick with them in Chrysler products.
Originally Posted By: wafrederick1
Avoid Bosch plugs,junk and do not last in GMs.Found this was a cause in a Chevy S10 Blazer,would not start and the plugs were junk.The plugs were not to old also.Someone else put in Bosch plugs,piched them and ran great with AC Delcos.Jeeps use Champions since it is a Chrysler product,stick with them in Chrysler products.
Okay, so the Grand Cherokee has Champion plugs. Do you know if they are platinum or iridium, or have some special features?
Avoid Bosch plugs,junk and do not last in GMs.Found this was a cause in a Chevy S10 Blazer,would not start and the plugs were junk.The plugs were not to old also.Someone else put in Bosch plugs,piched them and ran great with AC Delcos.Jeeps use Champions since it is a Chrysler product,stick with them in Chrysler products.
Okay, so the Grand Cherokee has Champion plugs. Do you know if they are platinum or iridium, or have some special features?
Depends on the year, older ones used cooper, the new ones use double platiniums.
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