Change 2016 RX350 spark plugs?

Maintenance/Repairs
,
1

Running well so far. 160k miles.
If change, recommended spark plugs?
Thank you.

Addendum:
Now open, Lexu$ dealer says $782 to replace the spark plugs.

2

Use the exact brand brand and heat range as specified by the manufacture. I suspect you are well past the recommended change interval.

6 Likes
3

And I bet the plugs to use are in your owner’s manual.

2 Likes
4

Check your owners manual.

Toyota uses only Denso or NGK plugs (or both). I wouldn’t get any other plug but one of those two.

The 3 rear plugs are a royal pain to reach. You need to remove several parts just to reach them. Are you sure you have the skills to do this? Based on your other posts - I seriously doubt it.

2 Likes
5

  1. That’s not really a question.

  2. Per the servicing/warranty guide. You should replace the spark plugs every 72 months or 60k miles. https://drivers.lexus.com/t3Portal/document/omms-s/L-MMS-16RX350/pdf/L-MMS-16RX350.pdf

  3. You’ll probably want to go with the DENSO 4705

If you haven’t replaced them yet, then you’ve grossly exceeded the specified interval.

2 Likes
6

I wonder if they seized in the block?

7

Probably not, mostly because they are in the heads.

1 Like