Spark plugs?
Thread Starter
|
Freshman User
Joined: Feb 2005
Posts: 41
Likes: 0
Spark plugs?
2001 Ford F150 supercab 4.6l 8 cylinder. 126 000 kms, 4x2 positive traction. Stock everything.
Average city 10 miles/gallon this winter.
Does anyone know first hand if Bosch Plantinum 4 + or the better plugs will give better fuel mileage? Are they worth the extra $$$(8 plugs = $80 cdn)? Would they yield better mpg than the Motocraft (Ford) plugs?
Thanks in advance..
Average city 10 miles/gallon this winter.
Does anyone know first hand if Bosch Plantinum 4 + or the better plugs will give better fuel mileage? Are they worth the extra $$$(8 plugs = $80 cdn)? Would they yield better mpg than the Motocraft (Ford) plugs?
Thanks in advance..
Posting Guru
Joined: Jul 2005
Posts: 1,940
Likes: 0
Nope. I made the mistake of putting in some bosch plugs and almost immediately it didn't idle very good. Motorcraft are the only ones that the modulars seem to like and are waaaay cheaper. I just picked some up at the dealership for about $4 a plug cdn.
Posting Guru
Joined: Oct 2005
Posts: 2,209
Likes: 1
From: Louisville, Kentucky
Some people have good luck with the Bosch plugs but, the general consensus is to stick with Motorcraft. Have you read the thread by Racerguy on changing spark plugs in these trucks? If not, it is highly recommended, good reading and preperation for doing this job. Good luck! 
Posting Guru
Joined: Mar 2004
Posts: 1,195
Likes: 0
From: Sunapee NH
Even if your lucky with the Bosch Plats to begin with, I'm sure you'll have issues in less then 10K miles. I tried them in my 03, for some stupid reason, and they worked great for a couple months (I used to drive 4K per month).
Get the correct Motorcraft parts and be sure to use dielectric grease. Do yourself a favor, plan on an hour or so to change the plugs. Start on the drivers side rear and move forward, then passenger rear to front. In other words the worst ones first. If your not a patient person, might be better to pay someone to do the job, as it can really be a pain.
Good luck and avoid plugs with extra crap on them. If they truly worked so well, why aren't those designs installed at the factory?
Get the correct Motorcraft parts and be sure to use dielectric grease. Do yourself a favor, plan on an hour or so to change the plugs. Start on the drivers side rear and move forward, then passenger rear to front. In other words the worst ones first. If your not a patient person, might be better to pay someone to do the job, as it can really be a pain.
Good luck and avoid plugs with extra crap on them. If they truly worked so well, why aren't those designs installed at the factory?
Tuned
Joined: Oct 2003
Posts: 295
Likes: 2
From: Ringgold GA.
Keep in mind that electricity can only jump one gap at a time. I work with electricity every day, electricity will find the easiest path, not paths to ground. It dosent matter if bosh made a plug with 100 electrodes, the spark will only jump one at a time. Stick with motorcraft plugs and avoid the gimmick plugs.
