4 PCSNEW -- DENSO #4511 PLATINUM T T Spark Plugs -- PT16TT

Très bonne qualités livraison ressonable vue situation actuel merci!

Had to Re-Gap these plugs after driving it for a few days. Took them back out of the car to find the tips were all full of carbon and a few were fouling out. Caused car of coarse to Misfire half the time, and I figured out why. Stick to buying Plugs at your local auto store. Seems like a Hassle to return these to seller. I thought I can just go to the UPS store through Amazon, wrong! Guess I didn't see the Return policy on these like I usually do on other items to return. So I guess I will have to bite the bullet and just Toss these out! Buyer beware....CHECK THE GAP ON THESE!!!

Any forum you read for replacing spark plugs on Ford F-150 says to replace with spec motorcraft plugs. Um, no. My truck is a 2000 model and in 20 years, iridium plugs have become the new standard. I could not find iridium plugs so went with these Platinum TT’s. Other Ford owner forums said they would cause misfires and are junk...boy...they could not have been more wrong! Over 150,000 miles on original plugs but only rated for 60,000 miles at best. These plugs will last double so 120,000 miles which is great. I’m getting awesome mileage and my truck runs better than it did brand new. What more could anyone doing repairs for themselves ask for? I gapped the plugs to spec but installed these plugs as an upgrade away from spec. That’s my recommendation, gap the plugs to spec. If you are getting misfires, chances are that you have issues with the EGR, bad fuel injector, mass air flow sensor issue, connecting wires are not sealed with dielectric grease, the wire connections are bad or you have an issue with the solenoid on your cam shaft. I also test each plug BEFORE installation to watch it fire so I am not wasting my time putting bad plugs in and then off to find what else the issue could be when I just created it. That is an expensive and time consuming mistake of doing this yourself. Total time to replace v 6 plugs was about 30 minutes. Have your socket wrench and extension ready to get to passenger side plugs. A tip, take the 3 fasteners screws off the passenger tire well and let it rest on the top of your tire. Then with the socket extension those plugs can be removed in that space above the tire before reinstalling the tire well. Great plugs & I recommend them to everyone!

These are a great set of spark plugs. They go in the hole and do what they supposed to do. I didn’t notice any fuel mileage change but you won’t just changing plugs. Anyone claiming horsepower or fuel mileage change is just wrong. You would have to have plugs completely burned out before you notice any change. I’ve used every plug being a mechanic so these do what they supposed to do. Burn fuel.

Good set of plugs. Work as they should. My only issue is the gapping was off for my '03 focus. I was expecting a certain gap based on factory settings on plug and these had more gap. I installed anyway and car runs fine. So make sure to check the gap per your vehicle specs.