Skip the auto shop - Our mechanics make house calls

Q: NGK Spark Plug WIre

asked by on

NGK Website claims they don't​ require to use dielectric substance while replacing spark plug wires. Do you suggest not using too?
My car has an automatic transmission.

A: It is generally still a good idea to use it...

It is generally still a good idea to use it since it can help keep out moisture which could potentially start corrosion that builds up between the plug and plug wire. The only time not to use it is when the manufacture specifically says not to.

If they mention that it's not require, then you can go ahead and use it to prolong the wires life and have less problems later on. Use a pea size amount on each plug. If you need help replacing your spark plugs, have a certified mechanic do the service for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Engine knocking, oil light on, engine quit

If you ran the engine out of oil until the engine quit or locked up, then you tried to add oil after the damage was already done. The engine bearings will need oil to work properly, and when you ran...

Q: Overheating, mostly when car is not going forward

Hello, thanks for writing in. If the fans are not coming on then it may be possible that the fan switch or fan relay are bad. I would test them to see if either of them need to be replaced....

Q: Gas filler door stuck, almost ran out of fuel

The fuel door on the Santa Fe has an electrical actuator to open the door and a back up release cable inside the vehicle near the door. The two main causes for the fuel door to not open are either...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.