Can someone settle an argument?

[silicon]

It's not going to give you a spotless intake tract, but it will certainly help knock off excess carbon build up on valves and around the valve seats.

Typically intake tracts do not carbon that much including the valves and the seats. It takes many many many thousands of miles to have a small buildup, and with unleaded gas these days buildups are minimal.

 

[silicon]

And yes, once a year is absolutely outrageous unless there's some extenuating circumstances.

plugs do wear out with time and mileage...if you examine them under a microscope the wear is evident. Unless they are platinum tipped, and i will agree with you then, once a year for plugs is not excessive. and do not forget to use anti-seize on the threads

 

[SpatiallyAware]

plugs do wear out with time and mileage...if you examine them under a microscope the wear is evident. Unless they are platinum tipped, and i will agree with you then, once a year for plugs is not excessive. and do not forget to use anti-seize on the threads

No.

Once a year is excessive for modern plugs. Almost all cars nowadays come with 50-100k plugs. If you're needing to change plugs ever 10-15k miles on a modern car then something is wrong.

And no again on anti seize. Most modern plugs are plated, using anti seize can cause you to over torque them. I still use a teenie tiny dab, but am very careful not to overtorque. Unless you're intending to say dilectric grease on the boots..?

 

[SpatiallyAware]

Typically intake tracts do not carbon that much including the valves and the seats. It takes many many many thousands of miles to have a small buildup, and with unleaded gas these days buildups are minimal.

It not only helps burn up the little bit of small buildup you're talking about, but also helps dislodge and break up oil sludge in the valvetrain.

 

[Kenmitch]

Probably not a good idea.

Back in the day I did red line my 69 340 4sd dart all the time. Nothing like the roar of the engine with the occasional sound of floating valves....Did have a rev limiter on it tho. Sure wish I had that car still. 🙁

 

[LTC8K6]

Why would you "fix" something that you cannot even detect as a problem? Is the car pinging on the recommended fuel? Running poorly? Or what?

What is the indication that you need this 1 minute rev limiter test?

Why isn't the occasional blast on the on-ramp, or romp through the gears, good enough?

 

[Corn]

My IS350 has 120,000 miles on it. At least 5,000 (probably closer to 10,000) of them have been at WOT. Car runs like a champ and loves track days.....

 

[GoodRevrnd]

I try to give my car the beans at least once every day. I think she's happier for it. It's what it was made for. 🙂

 

[Zenmervolt]

Simply revving the motor to the redline is risky because its not made for this type of running. JMHO

This is absolute bullshit.

The redlines chosen for the engines in production cars are very conservative and you're not risking a damn thing by occasionally running to redline on an on-ramp while accelerating onto the freeway. You're talking about a few seconds at redline compared to the hours the car spends in steady cruise.

ZV

 

[Railgun]

Depends on the car...

The Mazda RX-8 needs to be warmed up properly and then redlined to keep carbon from building up.

Ummmm...no.

The RX-8 has a rotary engine, which makes it unique. The rotary burns a LOT of fuel and injects oil to protect the apex seals. So carbon build up can be an issue if the engine isn't run hard after a proper warm up.

Yes, but it's not to protect the seals per se, it's for lubrication in general.

And people wonder why rotaries are unreliable? Your post is one of the reasons.

 

[desy]

My last two cars said not to change plugs for 100k miles
I don't drive 100k miles a yr , so yes once a yr would be unnecessary so would every 2 or 3 or 4.
I'll also agree sitting at redline isn't the best for a car however I'll also agree working your engine harder does help get rid of contaminants especially if you do a lot of city miles where this type of buildup does occur. A good hard HW run will cook off a lot of crap I'll even drop a gear for a few miles to get the revs up on the HW for this purpose.

 

[jagec]

again i disagree with your statements and, no disrespect intended, you don't seem to know a lot about engines and mechanics. A course at a community college may help you a lot.

I think that you've had a few too many courses at community colleges and need to do some reading to unlearn all of the "facts" that you were taught.