trinhchau

Hello Everyone,
I Wonder if there are an video with instruction for changing the spark plug on GS 350 2013, that would be awesome
Thx .

trbosmitty

iTrader: (2)

I just did mine. I should have done a DIY. Best advice is to get long extensions and a uni-wiggle adapter to help remove the coils. The ones on the right side (drivers side)can be tricky. Overall its an easy job. I did have to remove several 10mm bolts that where holding the large wire harness that is directly over the coils on the right side to give me more room to work with.

Dallasguy1

How many miles on the car before changing the plugs.

bclexus

You could probably go 150,000 miles and never see any difference in performance or in mileage.

jdmshawn11

did you have to take off the throttle body?

trbosmitty

iTrader: (2)

No just the air intake.

Runamok81

The service interval on spark plugs is 60K.


OP, here is the DIY how to for spark plugs on the IS350. Same 2GR-FSE engine. I will be doing this soon myself.

bclexus

While the 'service interval' may be 60k miles on changing spark plugs, there is no harm in not changing them...unlike other service items like engine oil, filters and various fluids.

If you want to follow the recommended service intervals for spark plugs, that's perfectly fine...but those OE spark plugs will still be performing just like new ones well past double the recommended service interval.

Runamok81

I'm not an engineer but I'm guessing that the plugs will last longer than 60K, no problem. The reason the service interval exists is for carbon buildup. At 150K you are going to have a much higher odds of stripping the threads and ruining your head. I believe it is the other 0.7mm electrode SK plugs that have the longer service interval, right? For our FK20HBR11 plugs, both Denso and Lexus recommend 60K, correct? Do you have a reference for the new 120K service interval?

trbosmitty

iTrader: (2)

This is what my plugs looked like at 60K miles.

bclexus

They look really good - plenty good enough for another 60k miles...

MH6

One big issue with not following the 60 k interval in addition to carbon, is the lack of changing them, will void the emission control warranty, which has a * by the spark plug interval and the footnote states that. So if there is a problem and they are not changed, you could be on the hook for any cost involved. Assuming I understand that correctly.

MH6

Sorry,, I was incorrect in the wording ..... there a #1 next to the sparks plug change at 60k ... #1 foot not says "Required under the terms of the emission control warranty" Have to look at this a little closer.

Runamok81

Agreed. I gapped them with my eye too and they "look" great. They'll easily go 200K, as will everyone else's.
Here's hoping he put them back in and saved himself $60. Waste not want not. /Sarcasm

A quick search of "60K FK20HBR11" will get net you SEVERAL threads of folks getting smacked down for suggesting 120K.
Even if you think the plugs "look" great at 60K. That's not how this works. Follow the 60K service interval, folks.

trinhchau

actually the owner manual required every 60K