Marqevans

In one of the numerous gas threads about 27 pages back, two posters mentioned there were benefits to direct injection engines if you "redline" the engine on a regular basis. One even cited his Lexus mechanic has recommending it. Is anyone doing this, and if so how? Accelerating in a lower gear? Revving at idle?

mikemu30

hard acceleration while driving every now and then. I've heard it cleans the injectors, throttle body or something close by😁

skiracer

Just put your foot flat the floor and hold on....

mssca

I was told by my Toyota dealership that my 2008 Toyota engine with only 75,000 km needs a cleaning of engine injectors and some diaphragms within the engine because apparently I am too conservative when it comes to driving. I don't know why modern engines needs such care. You don't have to rev to the red line, but you have to drive hard (floor it) once in awhile according to Toyota.

aznkorboi

Yeah I do it once a month to clean the throttle booooty and injectors. Plus it gives me a reason to hear that nice f sport engine sound

Marqevans

I guess I never look at the tachometer when I am accelerating on to a highway. Mostly because I am watching for cars when merging. I do know I can go 90 without crossing the 3000 mark.

Zmon

iTrader: (2)

No need to do a redline just to "clean" it. These engines are not like the older DI only models that have carbon build-up problems (See the IS250's 4gr-fse). The 2gr-fks in the 2015+ RX350's are like the 2gr-fse offered in the IS350 and the GS350 (GS350's prior to 2015 anyways) where it's both direct and port injected. The port injectors keep the valves clean for the most part, I've never heard of anyone with the 2gr-fse having carbon build-up issues like engines that rely solely on DI. The fks takes the fse's self-cleaning ability to another level as I guess Toyota/Lexus has made an improvement in it's self-cleaning ability over the fse.

jmtamu

I never watch the tach, but I hammer down all the time in Sport mode.

enjens

Redline if you think it's fashionable, but remember that race cars only last one day ----- if they're lucky.

ravenuer

I've never believed in abusing machinery, so no, I don't think "redlining" any street car does it any good. Nothing wrong with "getting on it" pulling out onto an interstate though.

coolsaber

Redline means bouncing near the cutoff. Dont know how that helps anything. Giving it some gas aaka the italian tuneup cleans the injectors and valves on old port injection. These engines use both DI and port injection when needed when they are most appropriate. I dont kno how you would tell which mode is active....but if you need to itch this itch, go into sport for all and manually select gear or ranges depending on which model and stay in it

Jiggz858

It's obvious the reason stated for redlining the engine is that one from the ancient engines and old petroleum formulation of long ago. Please do yourself a favor you do not need to redline an engine because you want to clean the injectors, heads, manifold, throttle this and throttle that, etc. Unless you drive like an 80 year old grandma where max driving is at 25 MPH and she feels like she's doing 125 MPH, then maybe you need to redline your engine once in awhile. Carbon or soot build up with modern engine and superior petroleum formulation is virtually gone. But if you still do not trust such information and if it makes you feel better add injector cleaner or fuel additives once in awhile. Personally, I do neither.

Elation

A mechanic is not an engineer.
Two very different professions,

chunktwo

iTrader: (2)

https://www.irishslang.info/images/f...ing_meme_2.jpg