Bosch (4501) FGR8DQI Platinum IR Fusion Spark Plug, Pack of 1

Product Description

Product Features

• Fused iridium and platinum center electrode, sintered into an extended insulator nose results in reaching self-cleaning temperature only seconds after starting and provides exceptional wear resistance
• Revolutionary surface air gap firing technology featuring Bosch's unique four ground electrode design delivers the most powerful spark for the most efficient combustion and optimum horsepower without increasing the voltage requirement
• Four yttrium enhanced ground electrodes resist spark plug wear and oxidation for exceptional performance life
• Factory pre-set gap allows for easy installation that never requires adjustment
• Fusion's voltage requirement increases less over time versus other iridium plugs for longer reliable performance of the vehicle's ignition system

Accessories

• Permatex 22058 Dielectric Tune-Up Grease, 3 oz. Tube

Customer Reviews

 (72 customer reviews)

31 of 34 people found the following review helpful

Good Plug - However, No Noticeable Fuel Mileage Increase, March 6, 2009

Sequestre "I live because He lives!" (Charlotte, NC) - See all my reviews

Amazon Verified Purchase(What's this?)

This review is from: Bosch (4501) FGR8DQI Platinum IR Fusion Spark Plug, Pack of 1 (Misc.)

I have two Toyota Camrys. A 2004 SE and 2006 LE. Both have the same 4 cylinder engine. I have always been religious about checking the gas mileage on my cars at every fill up because this relays to me if anything has gone awry. The '04 had 115,000 miles and the '06 had 45,000 when I replaced the plugs. I replaced them mainly to see if it would help the fuel mileage; unfortunately for me, no difference. I'm sure they are good plugs as Bosch is well known for their high quality, however next time I will probably replace using the factory spark plugs.

14 of 14 people found the following review helpful

Perfect, July 22, 2008

N. J. Edelman "www.njedelman.com" (San Francisco, CA USA) - See all my reviews
  

Amazon Verified Purchase(What's this?)

This review is from: Bosch (4501) FGR8DQI Platinum IR Fusion Spark Plug, Pack of 1 (Misc.)

Six month ago I popped these in my vehicle and the car continues to run smoothly and like new. I can't say that they increase performance in a noticeable manner, but I can say they didn't decrease performance. I'm happy overall.

14 of 15 people found the following review helpful

Perfect Plugs in my Impreza, January 24, 2010

D. Orlando (Birmingham, AL) - See all my reviews
  

Amazon Verified Purchase(What's this?)

This review is from: Bosch (4501) FGR8DQI Platinum IR Fusion Spark Plug, Pack of 1 (Misc.)

These have been running strong now for 30,000 miles. They start the car 1-crank faster and have not given me any trouble. Fuel economy is what it should be as well.

I will purchase these again when they are worn. Finally, a good spark plug from Bosch!

-- Update --
It's now been a few more years and I've accumulated 60,000 on the plugs with no issues whatsoever. The mileage has been great, fuel economy is normal, and car still cranks quickly. I am replacing them as a regular tune-up only. These are so good that I'm buying them again!