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Oh sorry, when you changed your plugs did you have to move the engine in order to get the coils out?
No. Engine was untouched. Once you pop those rings out there is ample space to get a socket extension (all be it with a universal joint) down the spark plug shaft.
I change the original plugs on my 2012 LS460 at 75,000 miles. They all looked good; probably could have waited another 25k without any problem. There was one odd thing. The gaps were 1 @ 0.31", 6 @ 0.39" and 1 @ 0.41". The specified gag is 0.043". Normally as spark plugs wear the gap increases not decreases. My local mechanic replaced the plugs so I did not get an opportunity to check the gap on the new Denso FK20HBR11 plugs. Has anyone confirmed the gap on new plugs?
Woodfield Lexus quoted me $375.00 to replace plugs with parts included on my 08 460 .
I was quoted this too today from Lexus of Sacramento. Turned out to be too good to be true. My mechanic quoted me $385, so I wondered how Lexus could undercut his price. Turns out there was a mistake in their system, $375 is for the labor alone. ($150/hr, total of 2.50 hours). The iridium long-life plugs are $18/each...not sure what the benefit of long-life is if the manual has you swap them out every 60K. Anyways, our local dealership's true price is $528 for parts, labor, tax on parts.
Spark plugs last, compared to days of old, effectively forever.
My wife's '02 RX300 is on the original plugs, 144K miles, IIRC. My old STS was on the OEM plugs at 143K miles. My LS is on the OEM plugs. Hell, even the Jeep 5.9L ZJ was on its original plugs/wires/cap/rotor at 162K miles.
Granted, the ZJ wasn't smooth, but I did drive it back to Fort Worth from Missouri with plugs worn to more than a tenth of an inch gap. Also, the fact I replaced both a cap and rotor indicates just how advanced the ignition system is.
I was quoted this too today from Lexus of Sacramento. Turned out to be too good to be true. My mechanic quoted me $385, so I wondered how Lexus could undercut his price. Turns out there was a mistake in their system, $375 is for the labor alone. ($150/hr, total of 2.50 hours). The iridium long-life plugs are $18/each...not sure what the benefit of long-life is if the manual has you swap them out every 60K. Anyways, our local dealership's true price is $528 for parts, labor, tax on parts.
I got 8 of the NGK's on Amazon and had a local independent mechanic do it for $100 labor, he completed it in just over an hour. Wasn't complicated, and I'd recommend exploring that route.
Spark plugs last, compared to days of old, effectively forever.
My wife's '02 RX300 is on the original plugs, 144K miles, IIRC. My old STS was on the OEM plugs at 143K miles. My LS is on the OEM plugs. Hell, even the Jeep 5.9L ZJ was on its original plugs/wires/cap/rotor at 162K miles.
Granted, the ZJ wasn't smooth, but I did drive it back to Fort Worth from Missouri with plugs worn to more than a tenth of an inch gap. Also, the fact I replaced both a cap and rotor indicates just how advanced the ignition system is.
No need to change LS460 spark plugs until at least 100k !!!
Originally Posted by CJITTY
2007 LS460 is 120K, for the 2008s and newer, it is actually 60K
Transmission Fluid is lifetime, now thats cool!!
NO NEED to change them until at least 100k miles interval. I have just changed them for my 2007 LS460 after 65k miles and they look so good, probably good for at least another 50k miles !!! do not listen to Lexus manual and waste your time and money ... I regreted....should have waited.
Look at the picture below
The P/O of my 2013 had the plugs done at 60K per the service schedule. Barring anything that pops up that indicates a problem, I'll do them again at 160K. Maybe even 180K.
Just to shine some light as to why some models are required at 60K as opposed to 120K miles. It is required under federal emissions warranty to replace them at 60K.
Note the models that use GR or UR engines included in the 60K mile interval all use direct injection fuel systems alone or in combination with port injection. The byproduct of direct injection with US fuels is carbon buildup. This fouls the plugs much more quickly and shortens their life, even with iridium plugs.
Vehicles with 120K mile intervals use iridium plugs with port injection only. No problem with these plugs lasting 120K.
As to why the 07 LS says 120K while 08+ are 60K is beyond me. It's the exact same engine. I'd have to guess sometime during 07 production the "required under federal emissions warranty" came into play...
Tony P.
Lexus and ASE Master Technician
Lindsay Lexus of Alexandria
Thanks for answering that Tony, but I have another question that you might be able to answer. Besides changing the spark plugs, is there anything else I need to perform a tune-up on my car? I have a 2009 LS460L
Had my dealer do it when the car was in for the valve spring recall last month.
I could of got it for free (because they sent me a text stating its free and no charge) , but I ended up just paying for the plugs, about $200 cad ($150 usd) all in
Slightly better gas mileage, car seems to have a little more pep , not sure if its the springs or the plugs but im happy they are both taken care of
My Jan 2007 build LS460 came with a spark plug change at 100,000 miles (it was right there on the owners maintenance manual). Very shortly thereafter, Lexus changed the interval to 60,000 miles "to maintain the emissions warranty" (whatever that means).
No. Engine was untouched. Once you pop those rings out there is ample space to get a socket extension (all be it with a universal joint) down the spark plug shaft.
Popping ‘O’ rings out & then reseating seems
to me an invitation for leaks. Your thoughts?
As this was bumped. I was looking over the history on my 2014, The spark plugs were changed originally in the 60K service. Lexus said starting asking around 120K to change the plugs, and the past owner turned it down, a few times, so now at 136K, I think summer/late spring (when the wife does not give me 50K projects) I will change out the plugs.
With the worry of fake/counterfeit plugs everywhere, I think I will order my plugs from the Lexus dealer (there is a few that sell directly on eBay), it's about $115 for all 8 plugs from Lexus...
I called Lexus of Route 10 in northern NJ for a quote to change out spark plugs on our 2009 AWD LS460...$1,159 plus tax!
And my local mechanic is charging $595+tax, not sure if this is inflation or I have a 'scam this guy' sound in my voice, but nothing is cheap on this car.
2012 LS460 Plugs @ 75,000 miles
