Spark-plugs

I have a Plug in Prius (PiP).

 

ok! so...I gathered from this conversation is:
- no need to gap
- buy NGK has laser iridium spark plugs

Last but not least. put the spark plugs in and then torque them each to 6 lbs of torque? Or are you talking about the screw that keeps the spark plug boots to the top of the head? because this video doesn't show the owner torquing the actual "spark plugs".

 

I'd say use the plugs spec'd in the owner's manual.

No. That's likely the coil hold-down bolt torque, and really, just snug those down good, don't overdue it, and don't bother with a torque wrench. More than one owner has reported here snapping the heads off those bolts, mistaking inch/pounds for foot/pounds. They're a trivial locator bolt.

For the spark plugs: second gen spec's 13 foot/pounds*. Third gen specs 15 foot/pounds. Take your pic. 13 sounds good to me.

* Per the repair manual excerpt attached to post #5.

 

I called the dealership and they gave me this Denso part number.


Posted via the PriusChat mobile app.

 

Yeah I was off the mark: Toyota has revised the plug from what's shown in Owners manual, "20" becomes "16"; it's a slightly hotter plug.

 

this is a no-brainer but i thought I'd include the difference between Toyota and local auto parts.
dealership- $64
local auto parts- $30


Posted via the PriusChat mobile app.

 

Unless your auto parts store part is also a genuine Denso or NGK plug, I think I'd still go with the Genuine OEM.

It only costs an extra 6¢ per week (over the life of the plugs) for the genuine ones, after all.

 

I just bought my 2013 Prius Two a few months ago. I had terrible acceleration that I am using a bumper sticker that says "Slowasf*ck" to warn drivers to just drive around me. Its acceleration is so freaking slow! So I changed my spark plugs at 127,000 miles. I used Autolite XP5683 Iridium XP Spark Plugs from Amazon. It was like day and night after installing these spark plugs! It is accelerating fast, almost as fast as my 2019 Honda Civic. It is great! Now I need a bumper sticker that says "Fastasf*ck". I use Savy Driver device in my car to track my driving habits, and it's actually reading the gas mileage to be 52mpg, near factory listed mpg. The older spark plugs the best gas mileage I had was 61 mpg, but it was VERY slow! I think it was worth changing the spark plugs because my engine now fires quickly and other drivers not as mad on the road.