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Product #: 15156G Brand: Aldor See Product Details
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Priced from: $13.63 - $18.33 See Product ChoicesPlease select a vehicle
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Product Details

Product Information



  • Engineered for motors using excessive oil
  • Self-cleaning plugs will not foul
  • Fires when other plugs fail

The best plugs for high-mileage engines! Boosts starting voltage to deliver a stronger, hotter spark-you will enjoy trouble-free starts even on cold mornings. Hotter spark also prevents soil build-up and fouling to give you better performance, acceleration and fuel economy. Thermoreactor disc delivers 40% more spark power to tip of plug when cold. Aluminum oxide insulator. Super-hard electrode won't burn.

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Customer Reviews

Overall Rating
5 out of 5
5 out of 5
Open Ratings Snapshot
Rating breakdown 3 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
3 of 3(100%)reviewers would recommend this product to a friend.
Product ReviewsWrite a review
Overall Rating
5 out of 5
5 out of 5
Big bang for my buck
May 6, 2009
Location: Texas
How often do you shop at JC Once a Year
" I have a 1981 ford bronco that i use for a deer hunting truck, with a 300 inline six. milage is unknown, this vehichle sees no hiway just running around at the ranch, it can sit for months at a time before being used. i have tried other non-foulers and they don't even come close to the way these plugs make the truck run, it fires up everytime and runs smoother. i would recommend trying these if your vehichle is not performing like it used to, before spending money on a mechanic. "
Pros: Best i have found
Cons: none
48out of 52found this review helpful.
Was this helpful?helpful48unhelpful4
Overall Rating
5 out of 5
5 out of 5
Great Product!
May 8, 2008
Location: Bowling Green, KY
How often do you shop at JC Multiple Times a Year
" I bought some new sparkplugs for my '92 Dodge Dakota Sport because its orginal sparkplugs didn't sound that great. The first time I started my truck with the new plugs installed it sounded like it was a brand new truck. I have noticed that I dont use as much gas with these new sparkplugs like I use to. The only thing that threw me off a little bit was when I was putting them on they were alittle bit longer than the originals but it didn't seem to cause any kind of problem with my engine. These are great sparkplugs. "
Pros: Improves MPG, engine sound great
Cons: None that I have found so far
1out of 3found this review helpful.
Was this helpful?helpful1unhelpful2
Overall Rating
5 out of 5
5 out of 5
1967 Pontiac Grand Prix 400 CI engine
February 28, 2008
Location: Yakima, Washington
How often do you shop at JC Once a Year
" My '67 Pontiac Grand Prix 400CI engine has 125000 miles on engine. Factory recommended plugs lasted only short while, then 1 or 2 would foul out. Used the Aldor 15156G plugs from Whitney and the result was excellent, no more problems. Starts great, seems to have much more power and engine sounds better. I am completely satisfied with the results and am now figuring that in the near future I will purchase another set for standby. Unless your engine is completely shot, (overhaul only), these will do the trick "
Pros: 100% for these plugs
Cons: None
24out of 27found this review helpful.
Was this helpful?helpful24unhelpful3
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