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2018 Toyota 4 Runner - 110K Miles - Service Recommended

Posted on 12/30/25 at 5:09 pm
Posted by TigeRoots
Member since Oct 2008
8556 posts
Posted on 12/30/25 at 5:09 pm
So my Wife brought our 4 Runner in today (no issues) to the local dealership to have the 100K inspection/service performed (110K miles).

Of course, they hit her with a bunch of shite that I'm not sure is necessary or not. Any OT mechanics or otherwise willing to chime in as to if these are necessary or not?

We've had this vehicle since brand new and had zero issues thus far. This would purely be PM being performed. I hate this Service Center + commission model of these dealerships. I have no clue what's a real threat or not. It's a 4x4 but we've never taken it off-road if that helps. TIA!

"Service Transfer Case" - $400
"Clean your throttle Body" - $90
"Service your front Differential" - $200
"Clean your fuel injection system" - $150
"Service your transmission" - $340
"Change spark plugs" - $460
Posted by paperwasp
2x HRV 2025 Poster of the Year
Member since Sep 2014
29070 posts
Posted on 12/30/25 at 5:11 pm to
quote:

"Change spark plugs" - $460

Posted by Jimmyboy
Member since May 2025
2076 posts
Posted on 12/30/25 at 5:11 pm to
Idk but do you feel peace of mind?
That’s what I do
Posted by dakarx
Member since Sep 2018
8207 posts
Posted on 12/30/25 at 5:15 pm to
quote:

Change spark plugs - $460


$400 labor to change the plugs? Do they have pull the engine or disassemble half the front end to get to the plugs?

quote:

Clean your fuel injection system" - $150


Thats an expensive bottle of "treatment" to pour into the gas tank.


Wonder why some of us do our own maintenance???
This post was edited on 12/30/25 at 5:17 pm
Posted by Gifman
Member since Jan 2021
17630 posts
Posted on 12/30/25 at 5:21 pm to
Find a local mechanic. Dealers are always going to want to do a bunch of preventative shite that’s expensive. My 2015 4Runner hasn’t had any of that shite done and it’s at 125k miles and better than ever.
Posted by CaptainsWafer
TD Platinum Member
Member since Feb 2006
59089 posts
Posted on 12/30/25 at 5:22 pm to
Reach into your sack, find your balls, and tell them no.
Posted by bee Rye
New orleans
Member since Jan 2006
34409 posts
Posted on 12/30/25 at 5:22 pm to
quote:

Do they have pull the engine or disassemble half the front end to get to the plugs?


You do have to remove the intake which takes about 30 seconds
Posted by deltaland
Member since Mar 2011
100731 posts
Posted on 12/30/25 at 5:23 pm to
quote:

Service Transfer Case" - $400


Check to make sure it has fluid. Add fluid if needed. Should be 50 bucks tops

quote:

Clean your throttle Body" - $90


Unnecessary


quote:

Service your front Differential" - $200


Check gear oil. Add if needed. 20 bucks tops


quote:

Clean your fuel injection system" - $150


Pour bottle of injector cleaner into gas. 10 dollars


quote:

Service your transmission" - $340


Sealed system. They’ll do nothing to it most likely


quote:

Change spark plugs" - $460


If this includes cost of good plugs plus labor, might be reasonable
Posted by TigeRoots
Member since Oct 2008
8556 posts
Posted on 12/30/25 at 5:25 pm to
quote:

$400 labor to change the plugs? Do they have pull the engine or disassemble half the front end to get to the plugs?


I did think that one was pretty outrageous and something I can do on my own. That said, I usually make shite worse when I try to work on it. I could see my snapping a plug off or some shite.
Posted by N2cars
Close by
Member since Feb 2008
38057 posts
Posted on 12/30/25 at 5:25 pm to
3 and 5, no.

Unless they'll reuse trans fluid and just replace the filter or, the trans has been previously serviced per OEM recs.
Posted by N2cars
Close by
Member since Feb 2008
38057 posts
Posted on 12/30/25 at 5:27 pm to
Also, 4 is questionable, assuming you've been running Chevron or Shell gasoline.

Running Chevron (any octane) guarantees no injector issues.
Posted by ninthward
Boston, MA
Member since May 2007
22051 posts
Posted on 12/30/25 at 5:30 pm to
lol no on all of that shite. You have a CE light on? If no, keep changing the oil like normal. You good.
Posted by Spankum
Miss-sippi
Member since Jan 2007
60657 posts
Posted on 12/30/25 at 5:37 pm to
I wouldn’t do any of that…If I did, it damn share wouldn’t be at a dealership. A local garage thst you trust can do every bit of that at 1/3 the cost you have been quoted.
Posted by TigeRoots
Member since Oct 2008
8556 posts
Posted on 12/30/25 at 5:37 pm to
No CE light on and synthetic oil changed every 10K religiously.
Posted by Fat Man
Gotta Luv Cov ... ington
Member since Jan 2006
7134 posts
Posted on 12/30/25 at 5:37 pm to
You need to find a reliable mechanic shop … usually an independent but it could be Firestone / GoodYear type place.

Repair shop at a dealership is a profit center … last resort.

Check your maintenance book and take it somewhere else.

TLDR: Oil change q 5,000 miles, tires rotate q 10,000 (a little late), Have one "extra" thing done each time (filter, A/C filter, wiper blades, etc.). Your 2018 4Runner could go another 90,000 miles.
Posted by pjab
Member since Mar 2016
5747 posts
Posted on 12/30/25 at 5:46 pm to
Plugs would be the only thing I would consider if they are hard to reach. Front/rear diffs and transfer case can easily be done in an hour with minimal tools and know-how (Remember to loosen the fill plug first, 1/4” clear tube helps with the front fill)

I drive an old Toyota 100-series. “Toyotas run forever” is mostly true but a not insignificant amount of maintenance is required. A lot of other cars will be landfill before you need to service certain items.
This post was edited on 12/30/25 at 5:49 pm
Posted by CHEDBALLZ
South Central LA
Member since Dec 2009
23110 posts
Posted on 12/30/25 at 5:52 pm to
3.5 hours labor to change spark plugs seams steep. I could do that in under an hour.
Posted by CAD703X
Liberty Island
Member since Jul 2008
91723 posts
Posted on 12/30/25 at 5:56 pm to
I'm about to hit 300k on my 2015 4runner and other than a battery that died I don't think I've done much other than oil changes.

How long do I have to wait until Armageddon for not doing those other things?

My son used to work for the VW dealership and they incentived him to find stuff. He told me one lady brought in her VW and he made a huge list including AC buttons in the car that were showing signs of wear that VW wanted like $200 each to fix and the lady didn't bat an eye and had them do like $4k of service for a car that was maybe 3 years old.
Posted by Crow Pie
Neuro ICU - Tulane Med Center
Member since Feb 2010
27190 posts
Posted on 12/30/25 at 5:57 pm to
quote:

I did think that one was pretty outrageous and something I can do on my own. That said, I usually make shite worse when I try to work on it. I could see my snapping a plug off or some shite
Repair Note 1A - All but one of the spark plugs will very easily twist out.

The last one requires you remove the engine to change.
Posted by Cdawg
TigerFred's Living Room
Member since Sep 2003
61635 posts
Posted on 12/30/25 at 5:57 pm to
quote:

"Service Transfer Case" - $400
"Clean your throttle Body" - $90
"Service your front Differential" - $200
"Clean your fuel injection system" - $150
"Service your transmission" - $340
"Change spark plugs" - $460

The real question is $1640 worth it to not have your wife in your ear about it and constantly worried it's somehow going to breakdown.

I usually go to my local oil change place and they can perform those tasks for a little less.

This post was edited on 12/30/25 at 6:00 pm
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