"Italian Tuneup"

In one mile driving ?
1 mile is normally enough to let it kick in. If it doesn't see enough parameters warm enough it will still rev to higher rpm but not have the VTEC kick in. Sound doesn't change, no "boost" feeling. Next stop light about a mile form that then works fine. Depends if I'm by myself or with others if I do that.
 
I run Top Tier all the time. I mean, it's a Corolla, so I'm pretty certain with even moderately poor maintenance the engine will last 300K miles. But yeah, probably better but less fun.
Ya. Apparently there are a couple of SAE papers surrounding aspects of it and it just doesn't appear to work.
 
Pretty sure an important part of the tune up is not just the WOT to bring up temps and get things cooking but then to SNAP off the throttle so the TB plate closes completely creating high vacuum to really suck the crud out.
I don’t think any TB snaps rapidly closed anymore especially in manual transmission cars. It is an emissions thing. That instant throttle closure makes a puff of something noxious
 
Others said it well, it's not just the RPM, but also the load. Gunning up a mountain is the best ITU there is. Ok, maybe doing it in the rain with no air filter might be slightly better.
 
Others said it well, it's not just the RPM, but also the load. Gunning up a mountain is the best ITU there is. Ok, maybe doing it in the rain with no air filter might be slightly better.
2x and its gets the cats hot enough to burn off around town putting around build ups. Had a daily commute up a long pull hill and I could tell who in front of me just did short around town driving by what was coming out the tailpipe via sight and smell.
 
This is not going to replace the need for a good throttle body cleaner - and while at it - I’d sooner use a can of CRC intake cleaner behind a PEA dosed tank of gas - all at oil change time …
 
I'll let the WRX rip a little bit occasionally, but I've found the best way to get some heat going is heading up the mountain in 4th gear and monitoring the oil temps. Temps will get over 200° and get everything nice and warm. Butt dyno says the engine runs better after a run like that.
 
Interested in opinions and thoughts from the all of you, knowing they'll be all over the map.

2017 Corolla has "D" for drive and "S" for sport mode. As an aside, "S"-mode is scary given the outright power Corolla's have under their hood. When in "S", it's hard not to chirp the tires when lightly feathering the throttle when a red light changes to green.

Anyway, back to the actual question: Is there a benefit to driving in "S" on, say, a 45 mile highway trip to keep RPM's around 3K instead of under 2K? You know, the old "Italian Tuneup" or "Blow the carbon out" type of thinking?

Opinions (based on fact or fiction) in 3-2-1...
Opinions are going to vary heavily. One recent example, I ran into a purchase of used msf course motorcycles. All parking lot miles. After driving and beating the living snot out of them on the open road, within 1,000 miles of what I call "Italian Tuneup" loosened them up, and regained their power. It most likely was a combination of improved ring seal, valve seat, and overall carbon reduction.
 
With engine management software, modern fuel injection,powerful ignition and catalytic converters, I doubt "Italian tune-ups" provide much benefit to modern cars.
 
Interested in opinions and thoughts from the all of you, knowing they'll be all over the map.

2017 Corolla has "D" for drive and "S" for sport mode. As an aside, "S"-mode is scary given the outright power Corolla's have under their hood. When in "S", it's hard not to chirp the tires when lightly feathering the throttle when a red light changes to green.

Anyway, back to the actual question: Is there a benefit to driving in "S" on, say, a 45 mile highway trip to keep RPM's around 3K instead of under 2K? You know, the old "Italian Tuneup" or "Blow the carbon out" type of thinking?

Opinions (based on fact or fiction) in 3-2-1...
I do an italian tune up a couple times a month mostly to blow out the carbon on ym DI engine, otherwise mostly operated in a extreme short trip regimen.
But i have a very different setup.
2023 Armada with 400 hp 5.6 L V8. 6000 lb (empty) SUV. taking it to 100 mph+ once a week for several miles (I live in Germany)
 
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