Recent Topics
2015 VW GTI autobahn oil questions
by Skyalbo
06/24/18 11:28 PM
Corrosion in the garage - salt or humidity?
by Kurtatron
06/24/18 11:13 PM
Darn dogs
by AZjeff
06/24/18 10:21 PM
New GC?
by Bullwinkle007
06/24/18 10:04 PM
The guy with the plexiglass head on you tube
by andyd
06/24/18 09:21 PM
'07 Pacifica Timing Belt Replacement success
by 92saturnsl2
06/24/18 09:10 PM
SAE 90 v 85/140
by Knuckle078
06/24/18 09:10 PM
Mobil 1 5W30-HM 5,011 mi, 1999 Ford Escort
by WA1DH
06/24/18 08:45 PM
what happened to merk
by ernied
06/24/18 08:34 PM
Schaeffer's oil reviews on Amazon
by zfasts03
06/24/18 07:41 PM
Decent MP3 player
by Ed_T
06/24/18 07:08 PM
Letgo
by Donald
06/24/18 06:52 PM
Tire buying advice
by supton
06/24/18 06:23 PM
Two versions of M1 5w30 ESP now?
by Patman
06/24/18 06:21 PM
No older cars in New York State?
by Oldtom
06/24/18 06:19 PM
2009 Taurus strut mount noise
by terry274
06/24/18 04:38 PM
A3/B3 vs A3/B4, big difference or irrelevant?
by FordCapriDriver
06/24/18 03:36 PM
2003 Honda power steering problem
by hogpops
06/24/18 03:29 PM
Public Service Announcement: Flush Your HW Heater
by gathermewool
06/24/18 03:25 PM
Fellow 2AZ-FE toyota owners: what oil are you usin
by car51
06/24/18 03:21 PM
Newest Members
lozpxs, danthemanx07, FunktasticLucky, Knuckle078, penncove
65317 Registered Users
Who's Online
26 registered (dishdude, Bailes1992, dogememe, Aero540T, cb_13, edhackett), 861 Guests and 32 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65317 Members
67 Forums
285952 Topics
4771873 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4657025 - 02/05/18 02:10 PM Do dirty pistons really affect performance/economy
tempnexus Offline


Registered: 02/11/16
Posts: 67
Loc: NM
Do dirty pistons really affect performance/economy or is it only a cosmetic issue? Like people who say that car runs better after a car wash or engine runs better after they rinse the top of the engine etc.

Top
#4657031 - 02/05/18 02:14 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
Rand Offline


Registered: 08/20/03
Posts: 12653
Loc: NE,Ohio
piston deposits (light) is mainly cosmetic IMO, heavy piston deposits can cause issues... such as preignition.excessive wear, stuck rings..etc
_________________________
2017 Jeep Cherokee Trailhawk V6

Top
#4657044 - 02/05/18 02:25 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
PimTac Online   content


Registered: 03/04/17
Posts: 4342
Loc: Soviet State of Washington
I think the answer here is eventually. Once piston deposits start and no action is taken to resolve or reverse them they continue to build and as mentioned already the result is stuck rings, hot spots etc.
_________________________
2017 Mazda CX-5 Grand Touring

Valvoline Advanced Synthetic 0w20
Mobil 1 M108A EP filter


Top
#4657065 - 02/05/18 02:49 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1771
Loc: Alberta
I think the worst thing to worry about is if you gum up the area underneath the rings, but the chances of that with modern synthetic oil is next to nil. I guess clean pistons can't hurt.

Top
#4657066 - 02/05/18 02:50 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
UncleDave Offline


Registered: 06/02/14
Posts: 1646
Loc: Ca.
light crud on the skirt - cosmetic.

Crud anywhere in the rings - its real.

UD
_________________________
Uncle Dave
Cat 3126/2 MB3500/Titan/RX400H/17 Ridgeline
700HP V10/ 725HP BBC/ Raptor 700/ KFX450/ YZ250/Onan 8K/ Cat3011C

Top
#4657089 - 02/05/18 03:10 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
tig1 Offline


Registered: 01/03/09
Posts: 13661
Loc: Illinois
Ring coking is a big problem. It causes the rings to seal shut, blow by, and high oil consumption that can lead to cat failure.
_________________________
2007 Ford Fusion 227,000 miles
M1 0-20 EP
2017 Ford Fusion 49K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters


Top
#4657125 - 02/05/18 03:31 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
tempnexus Offline


Registered: 02/11/16
Posts: 67
Loc: NM
Thanks all.

Now the question is: Do any additives actually clean the pistons if the engine is direct injection like the Volvo Drive-E engines?

If not then how does one go about cleaning them? (pull the plugs, soak the piston in let say starter fluid ?)


Edited by tempnexus (02/05/18 03:32 PM)

Top
#4657140 - 02/05/18 03:44 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
raytseng Offline


Registered: 12/11/08
Posts: 2343
Loc: CA
There is no logic in the direct injection as a problematic variable for an additive for piston cleaning. The additive will clean a DI piston the same as a regular fuel injection.

Did you mix this up with valve cleaning?

That being said any of the pea additives will work, I will recommend redline si1. You can youtube redline si1 reviee and a couple people have taken before and after borescope shots where it cleans. It is realistic as its not 100% clean but you see it working.
Finally if your system is already clean enough there is not going to be any difference in your vehicle behavior.


Edited by raytseng (02/05/18 03:47 PM)

Top
#4657153 - 02/05/18 03:56 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
Artem Offline


Registered: 10/30/10
Posts: 5119
Loc: Florida
Well, if the piston top deposits build up to an extent where the engine's compression ratio becomes effected, that will certainly cause a performance change, wouldn't you say?

Deposit control is a MUST, in my opinion.
_________________________
2014 Mazda 3 Hatch 2.0L & 6spd - Idemitsu 0w20 Synthetic @ $0.75 a quart.

Top
#4657184 - 02/05/18 04:24 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
andyd Offline


Registered: 09/25/04
Posts: 7167
Loc: Marshfield , MA
Bestest way I know to control carbon build up is the funnest too. The Italian tune up grin2
_________________________
'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

Top
#4657225 - 02/05/18 05:09 PM Re: Do dirty pistons really affect performance/economy [Re: andyd]
WhizkidTN Offline


Registered: 12/05/16
Posts: 491
Loc: E. Tennessee
Originally Posted By: andyd
Bestest way I know to control carbon build up is the funnest too. The Italian tune up grin2


Absolutely! I do a combo effect of dosing with Redline SI-1 while doing it. Fun and healing at the same time (done safely of course).
_________________________
His: '12 Kia Optima SX - 2.0L GDI Twin-Scroll Turbo [Tuned] (71K)
>EDGE 0W-40, Fram XG9688
Her's: '14 Nissan Rogue SL AWD - 2.5L NA (66K)
>EDGE 0W-20, Fram XG6607

Top
#4657273 - 02/05/18 05:56 PM Re: Do dirty pistons really affect performance/economy [Re: WhizkidTN]
krismoriah72 Offline


Registered: 02/16/09
Posts: 1519
Loc: wv
There are many youtube videos of guys cleaning piston tops and combustion chambers with various products, they have proof of good/bad with boroscopes.

I havent seen a water mist video yet perhaps there isnt one..but water as far as i know cleans combustion chambers the best.

Does it matter one way or another? No proof of performance or economy that i have ever seen.

There are lots of engines that make it way past 200-400K miles with nothing done but routine maintanance.


IMHO most of the ring coking and blowby issues are due to manufacturing defects using poor designs or bad products..

Top
#4657349 - 02/05/18 07:19 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
eljefino Offline


Registered: 06/15/03
Posts: 32671
Loc: ME
I've done MMO/ Seafoam/ Water mist cleans of old saturn s-series.

They burn oil and the coke from that leads to preignition/ knocking, which leads to ignition retard, and flat spots/ terrible performance.

All three methods clean great. So does running a 15w40 oil.

Top
#4657368 - 02/05/18 07:32 PM Re: Do dirty pistons really affect performance/economy [Re: eljefino]
spasm3 Offline


Registered: 05/30/10
Posts: 8665
Loc: North Carolina
Originally Posted By: eljefino
I've done MMO/ Seafoam/ Water mist cleans of old saturn s-series.

They burn oil and the coke from that leads to preignition/ knocking, which leads to ignition retard, and flat spots/ terrible performance.

All three methods clean great. So does running a 15w40 oil.


Same thing in my saturns, I used berryman b-12 1/2 can every 3rd tank, and rev it good when hot.
_________________________
13 elantra 68k 5w30 QSUD
03 chevy avalanche76k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 3900 miles m1 0w20/0w40 mix

Top
#4657407 - 02/05/18 08:21 PM Re: Do dirty pistons really affect performance/economy [Re: tempnexus]
MrQuackers Offline


Registered: 08/17/12
Posts: 2177
Loc: Oregon
That sc1 has been at 185k for a long time now.
_________________________
Master the 1000 yard stare

coffeeMobil 1 USA

Top
Page 1 of 2 1 2 >