Had a 97 Buick Lesabre with 320,000 miles on it with the original plugs, still ran great when the frame fell out.

Lol, that’s the first thought that came to me also.

Gary I just sold my 2016 sierra had the 5.3 GM motor, probably same as your Silverado? Mine had 130,000 and original plugs, ran like a top and was an awesome truck.

Maint schedule didn’t show a change due on plugs and it went in religiously for oil changes and other services.

Jim

Yep, that what it calls for and when I changed them the first time, the electrodes were rounded considerably. Copper plugs wear out much faster, but have the best concuctivity. Its a 2nd gen, 2013....not sure what the 3rd gen tacomas call for. They might use platinum plugs which last much longer..?

We go 30 on regular plugs in our 2012 jeep also Midlander.

How many miles on the Tacoma by now Boss? Last time I heard it was 800k maybe?

Only 723,000+ miles now. Since I didn't renew my timber company contract, my driving has slowed down drastically.

As an aside, my vortec was running a little rough when starting it and had me wondering if it was plugs or something. My mechanic buddy cleaned out the throttle body and completely cured the problem. Took maybe 10 minutes.

I have a 2016 Silverado with a 5.3 engine. I take mine in for an oil change every 10,000 miles. My mechanic said 150,000 miles on the plugs.

2013 Silverado, 2500 (3/4 ton). Had the plugs changed and throttle body cleaned at 130,000.Tachometer dropped 200 RPM at 65 MPH on the highway.
Went from 13MPG to 16 MPG.
Roy

Most plugs can go to 100,000
Mine needed them change than, had a couple burned down pretty good.
Them platinum plugs are amazing.

2009 Silverado 5.3

Just turned 190K this week. Still the original plugs.

I've got a 2014 Tacoma with 50,000 miles. Runs great. Why should I change plugs and what happens if I don't?

Never have to change them in my truck

…. I’ve got 190,000 miles on my 2013 factory plugs

.. and traded in a 2009 with 230,000 miles on it’s original plugs

… maybe they like them rounded lol

And to think you could have gotten 460,000 miles on that 2009 if you had just changed the plugs..! Lol

… it was running fine… just decided to get that 2013

… I’m going to see how many I can get on this 2022 without changing them now lol

Sharp truck...

New plugs can improve fuel economy on a Chevy Colorado. Speaking from first hand experience.

Thanks Mister …. Too much electronic crap on them now for me..bunch of stuff in the cab I’ll never use … bought it thinking till death do us part but I just can’t see it lasting without something short circuiting and screwing everything up lol

… my oldest boys getting the 2013 if he keeps his nose clean… might even make him change the plugs at 300,000