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When and how do you blow carbon out of car/truck? #4683454
03/03/18 07:04 PM
03/03/18 07:04 PM
Joined: Feb 2018
Posts: 446
Chester County/Pa.
BAJA_05 Offline OP
BAJA_05  Offline OP
Joined: Feb 2018
Posts: 446
Chester County/Pa.
Hello everybody,

I changed the oil out in my Sisters 08 Acura TL 3.2L on Thursday. Went for a good test drive and when I floored it on a straightaway from stop -- I looked in the rear view mirror and some black smoke was coming out. Did that one more time and redlined it and when I did it the last time -- no smoke at all. I imagine that it was carbon from not getting on it often enough? How often should this process take place and how does everybody else do it?


Dale


2017 VW Jetta SE TSI 1.4L Turbo (hers)
M1 Euro 0W40 & FU (19K)
2008 Acura TL 3.2L QSHM 5W20 & FU (103K)
2005 Subaru Baja AWD 2.5L N/A 5spd.
Rotella T6 5W30 & Wix (91K)
2000 Ram 4X4 5.9L (93K) PYB & FU
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683469
03/03/18 07:16 PM
03/03/18 07:16 PM
Joined: Nov 2008
Posts: 12,519
NH
supton Online content
supton  Online Content
Joined: Nov 2008
Posts: 12,519
NH
Did the car feel more perky afterwards, or the same? IMO, if it didn't feel one bit different, then it's "never" required. But if it did feel better, then clearly it needs to be done more often. Not an exact science, but, something easily determined.

My VW TDi clearly benefited from hard driving. I don't know how often it really needed it, but at 100hp I could easily find reason on a daily basis to flog it. So it was never really a problem--it only reared its head when I was after max mpg for a tank or two. All the gassers I've had, port injection vehicles, never seemed to care.

A good place to wind it out is on a hill, particularly if you're not going fast at the bottom. Or highway on ramps. Used to be toll booths too, but ours went to high speed lanes so no slowing down.


2011 Toyota Camry, base, 2.5L/6MT, 163k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 144k, ours
1999 Toyota Camry LE, 2.2L/4AT, 187k, his
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683474
03/03/18 07:22 PM
03/03/18 07:22 PM
Joined: Oct 2012
Posts: 4,590
Taiwan
Ducked Offline
Ducked  Offline
Joined: Oct 2012
Posts: 4,590
Taiwan
I have a tube rigged to suck distilled water into the air intake at high revs.

Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683478
03/03/18 07:25 PM
03/03/18 07:25 PM
Joined: Jul 2005
Posts: 30,415
NY
demarpaint Offline
demarpaint  Offline
Joined: Jul 2005
Posts: 30,415
NY
I don't do it often, once in a blue moon getting onto the parkway, and only when the engine has been running at least half an hour or more. A good kick in the pants is good every so often, but I think some people over do it. Especially to a cold engine, which may eventually end up doing more harm than good.


God Bless Our Troops

Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683486
03/03/18 07:30 PM
03/03/18 07:30 PM
Joined: Apr 2004
Posts: 347
Tennessee
SWS Offline
SWS  Offline
Joined: Apr 2004
Posts: 347
Tennessee
I occasionally do what you did, but I wait until second gear to push it, and I make sure the A/C is off.
Of course, only after fully warmed-up, including transmission. And drive gently for a few minutes afterward, before shutdown, to let it cool down to ‘normal’’. This is especially important for turbo engines, from other comments on this site. Watch the speed limits!

Re: When and how do you blow carbon out of car/truck? [Re: supton] #4683613
03/03/18 09:16 PM
03/03/18 09:16 PM
Joined: Aug 2014
Posts: 1,313
Tasmania, Australia
hpb Offline
hpb  Offline
Joined: Aug 2014
Posts: 1,313
Tasmania, Australia
Originally Posted By: supton
A good place to wind it out is on a hill


^ This. Back when I worked on cars for a living, I'd always road test them up a steep hill, flooring the accelerator at low speed and getting the revs up around redline. The vehicles which spent most of their time in the city would always blow great plumes of black/brown smoke out. Does them good!


MY16 Mitsubishi Outlander 2.2 diesel, 51,000km - Castrol 5w30
2006 Ford Falcon 4.0, 135,000km - Penrite Vantage 15w40, Ryco filter
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683667
03/03/18 10:37 PM
03/03/18 10:37 PM
Joined: Mar 2011
Posts: 1,806
CA
spackard Offline
spackard  Offline
Joined: Mar 2011
Posts: 1,806
CA
Well, CA realized that carboned-up engines pollute more so they legislated a minimum amount of cleaning agents be in all road gasoline, no matter how cheap the gas you try to buy.

Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683679
03/03/18 10:55 PM
03/03/18 10:55 PM
Joined: Sep 2004
Posts: 7,514
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,514
Marshfield , MA
When a 528e was feeling logy, I would take it for a 75 mph drive for at least an hour


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683698
03/03/18 11:26 PM
03/03/18 11:26 PM
Joined: Oct 2015
Posts: 439
MN
TmanP Offline
TmanP  Offline
Joined: Oct 2015
Posts: 439
MN
I like uphill onramps as they require lots more throttle.
With a warmed-up engine, I roll into it (don't squeal the tires) and then lett'r rip to the speed limit +5/10.
I try to do this "Italian tuneup" every month or so. I generally drive pretty normally (revs under 3k most of the time), and am cognizant to not be hard on a cold engine.


2012 Toyota Camry 2.5 30,000 mi
2015 Chevy Silverado LT Z71 5.3 V8 30,000 mi
2010 Toyota Sienna 3.5 V6 150,000 mi
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683705
03/03/18 11:43 PM
03/03/18 11:43 PM
Joined: Dec 2011
Posts: 4,729
North Carolina
rooflessVW Offline
rooflessVW  Offline
Joined: Dec 2011
Posts: 4,729
North Carolina
"A redline a day keeps the mechanic away," is I think how the old adage goes.

Let the oil get up to temp and let 'er rip.

A throttle adaptation can do a world of good too. I like to do them whenever I change the oil.


"Zed's dead baby, Zed's dead."
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683786
03/04/18 06:45 AM
03/04/18 06:45 AM
Joined: Apr 2014
Posts: 1,249
South Central PA
Delta Offline
Delta  Offline
Joined: Apr 2014
Posts: 1,249
South Central PA
Heh, everytime I drive. Couple miles up the mountain will do it, and I have no choice but to drive one to get outta town. You really let it rip when you see a semi halfway up and you wanna beat him before the twisties laugh

Not every vehicle can benefit from this though. It's only a matter of time before I shoot a rod out the side of the block on the S10. You gotta be running some RPM to make it up the mountain in that thing.


'17 VW GTI 2.0T - 6MT - 8K - Edge 0w40
'15 Camry SE - 2.5 - 20K - PP 0w20
'99 S10 - 2.2 5MT - 155K - T6 0w40
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4683828
03/04/18 08:46 AM
03/04/18 08:46 AM
Joined: Mar 2008
Posts: 5,942
Michigan
ZZman Offline
ZZman  Offline
Joined: Mar 2008
Posts: 5,942
Michigan
Not so sure with fuel injection this is needed anymore.


2003 Mercury Grand Marquis. Rotella T6 Multi-Vehicle oil
2008 Sebring Hardtop convertible. Rotella T6 Multi-Vehicle oil
2006 Kawasaki Vulcan 900 LT. Amsoil Metric 10w-40
Re: When and how do you blow carbon out of car/truck? [Re: rooflessVW] #4683928
03/04/18 10:38 AM
03/04/18 10:38 AM
Joined: Oct 2008
Posts: 19,080
Sunny Florida
SteveSRT8 Offline
SteveSRT8  Offline
Joined: Oct 2008
Posts: 19,080
Sunny Florida
Originally Posted By: rooflessVW
"A redline a day keeps the mechanic away," is I think how the old adage goes.

Let the oil get up to temp and let 'er rip.

A throttle adaptation can do a world of good too. I like to do them whenever I change the oil.


If you mean reset the adaptives I like that too. My transmission gets really laggy if you slur around town at 1500 rpm all the time. If you get on it then no problem. The throttle was exactly the same until I tuned the car.


"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix
Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4684036
03/04/18 12:44 PM
03/04/18 12:44 PM
Joined: Jan 2004
Posts: 4,142
California
nthach Offline
nthach  Offline
Joined: Jan 2004
Posts: 4,142
California
I like to give the cars I drive a good romp on the onramp once a week. Tricky in a hybrid to get it to WOT, but if it's a conventional car I stomp on it when I have the ramp to myself and if the merge lane is clear.

Re: When and how do you blow carbon out of car/truck? [Re: BAJA_05] #4684313
03/04/18 06:00 PM
03/04/18 06:00 PM
Joined: Jun 2011
Posts: 1,754
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline
Joined: Jun 2011
Posts: 1,754
Crawfordville FL
Not many good hills around here so if I feel it’s necessary I can hop on the interstate or find a nice backwoods road. I like to let it wind out up to about a hundred but usually for safety I just make about 3 hard accelerations up to 80 from 40.


2010 Ford Fusion SE 3.0L V6, 178k miles M1 HM 10w-30
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