Recent Topics
Omnia - the band
by Shannow
Today at 02:58 AM
Guest's devices cannot connect to my WiFi
by boulderdentist
Today at 12:54 AM
Battery stuck in flashlight.
by Chris142
Yesterday at 11:53 PM
Must read for everyone watching their diet
by JLTD
Yesterday at 11:28 PM
2014 Mazda5 Valvoline Synpower 0W-20 7500 miles
by PWMDMD
Yesterday at 10:54 PM
VOA Ravenol ECS 0W-20
by PWMDMD
Yesterday at 10:47 PM
2020 mid-engine Corvette spy vid?!
by AZjeff
Yesterday at 10:45 PM
'05 base impala. NO turn signals.FAST blinking.
by Lee4212
Yesterday at 10:34 PM
Motul 15w-50, 5 Liter 4 Pack $19.42
by hatt
Yesterday at 10:10 PM
High Lead Redline 5W40 thoughts? Ty
by Pajero
Yesterday at 09:40 PM
Source of the Mighty Columbia River
by Snagglefoot
Yesterday at 09:32 PM
Another thick/thin article to discuss
by JLTD
Yesterday at 09:23 PM
Ethylene Glycol Long Life Coolant for KUBOTA
by pburchett
Yesterday at 09:11 PM
Mobil 1 5W-30, 6,200 mi, 2017 2.3 EB Explorer
by Whimsey
Yesterday at 08:48 PM
Chevron 10w-40, 97 Nissan Maxima, 3000 miles
by OilGeek91
Yesterday at 08:36 PM
Old green antifreeze in garage storage is gelling
by JLawrence08648
Yesterday at 08:32 PM
VWs at Pick n Pull
by Eric Smith
Yesterday at 08:17 PM
Single Data Point: CK-4 destroys the flat tappet
by Gokhan
Yesterday at 08:12 PM
Breaking in new short block
by Bub
Yesterday at 07:00 PM
Should I buy a mill or a drill press?
by Vern_in_IL
Yesterday at 06:32 PM
Newest Members
azzid0906, OilGeek91, DRancher, Newuser, Varbill
65299 Registered Users
Who's Online
23 registered (2002 Maxima SE, dishdude, BobFout, billt460, Bjornviken, dlundblad, 2 invisible), 864 Guests and 60 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65299 Members
67 Forums
285816 Topics
4769950 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4550061 - 10/21/17 10:22 AM Manual Transmissions and DI/GDI engine issues
Speak2Mountain Offline


Registered: 04/07/17
Posts: 347
Loc: Mississippi
Brainstorm: If more DI and Turbo DI engines had manually transmissions would that alleviate or eliminate certain problems inherent of this type

Top
#4550074 - 10/21/17 10:30 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
Kamele0N Online   sick


Registered: 02/09/15
Posts: 2042
Loc: Slovenia
Eliminate....you can revv it much easier on a highway in 4th or 5th gear to burn all the deposits
_________________________
2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD various 10w40

Top
#4550086 - 10/21/17 10:37 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
CT8 Offline


Registered: 10/09/14
Posts: 10989
Loc: Idaho
But then auto trans are programmed not to lug the engine.
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

Top
#4550092 - 10/21/17 10:41 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
Wolf359 Offline


Registered: 04/27/12
Posts: 4757
Loc: MA
Originally Posted By: Speak2Mountain
Brainstorm: If more DI and Turbo DI engines had manually transmissions would that alleviate or eliminate certain problems inherent of this type


That ship sailed a long time ago along with crank windows and manual locks. Automatics can last pretty long now. With a stick, you eventually need to drop the transmission and replace the clutch, the cost of which is about what the option on an automatic costs. Plus no one knows how to drive them because many models don't even offer it as an option.

Some say the issue is the fuel and use of top tier gas is more important with DI engines.

Top
#4550096 - 10/21/17 10:45 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
rooflessVW Offline


Registered: 12/24/11
Posts: 4059
Loc: North Carolina
I'm not sure what types of problems you're trying to eliminate by transmission choice.

I don't see a difference.
_________________________
"Zed's dead baby, Zed's dead."

Top
#4550103 - 10/21/17 10:50 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
Wolf359 Offline


Registered: 04/27/12
Posts: 4757
Loc: MA
Plus I'm sure it's a lot harder driving a manual these days. It's hard enough with an automatic and trying to handle the phone, smartphone apps like navigation, music, etc.

Don't get me wrong, I drove a manual for years, but I don't miss it. It was fun at time, but other times it became a chore, especially in stop and go traffic.

Top
#4550117 - 10/21/17 10:59 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
skyactiv Offline


Registered: 03/02/13
Posts: 4399
Loc: The Midwest
I have a GTI with a turbo direct injected engine and a six speed manual. I cleaned the intake valves at 80K. They were nasty, but the car didn't run any better after cleaning them. It wasn't that difficult to do. I'd hate to do it on a V engine.
_________________________
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Top
#4550119 - 10/21/17 11:01 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
skyactiv Offline


Registered: 03/02/13
Posts: 4399
Loc: The Midwest
BTW, my wife still takes mine or her stick car to Brooklyn a few times a year to see her parents. #NYC traffic
_________________________
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Top
#4550121 - 10/21/17 11:03 AM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
Vuflanovsky Offline


Registered: 12/15/14
Posts: 1168
Loc: California
I think the "eliminate certain problems inherent of this type" can depend on your driving style, vehicle, and possibly even how the software programming is for the manual transmission as much as anything else. I don't specifically see manual transmissions as a remedy for whatever issues that you'll get anyway if you do nothing but short trips, idle for hours, and change the oil at 12K miles vs. 5K miles.

I have a five year old DI 6 spd. manual that doesn't seem to have any issues with deposits or fuel dilution to the extent it's portrayed on here. That's not to say that a 6 spd. manual DI of another make would be the same...so I think your question is likely more about how the car is treated and maintained AND the individual car than what transmission it has....

Top
#4550138 - 10/21/17 11:45 AM Re: Manual Transmissions and DI/GDI engine issues [Re: rooflessVW]
demarpaint Offline


Registered: 07/03/05
Posts: 29780
Loc: NY
Originally Posted By: rooflessVW
I'm not sure what types of problems you're trying to eliminate by transmission choice.

I don't see a difference.


Maybe an Italian Tune up is easier/safer with a M/T?
_________________________
God Bless Our Troops


Top
#4550140 - 10/21/17 11:48 AM Re: Manual Transmissions and DI/GDI engine issues [Re: skyactiv]
demarpaint Offline


Registered: 07/03/05
Posts: 29780
Loc: NY
Originally Posted By: skyactiv
BTW, my wife still takes mine or her stick car to Brooklyn a few times a year to see her parents. #NYC traffic


Don't you love it? Try living here on L.I. and commuting into Brooklyn. LOL Thank God I only do it on occasion. My niece does it five days a week and wants to shoot herself on a Monday morning.
_________________________
God Bless Our Troops


Top
#4550145 - 10/21/17 12:01 PM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
skyactiv Offline


Registered: 03/02/13
Posts: 4399
Loc: The Midwest
Actually, what led me to clean them was that the butterfly's on my intake manifold would't open. A new OEM intake is surprisingly reasonable at $170 for my car. This thread is ironic. The dual mass flywheel went out on my car at 50K. I've had only two issues in 111K miles, but not issues the average DIY may wanna tackle. I will add that removing the intake and cleaning the valves was pretty easy on my car. It could be a royal pain on some vehicles.

_________________________
Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Top
#4550147 - 10/21/17 12:02 PM Re: Manual Transmissions and DI/GDI engine issues [Re: Wolf359]
JHZR2 Offline



Registered: 12/14/02
Posts: 41789
Loc: New Jersey
Originally Posted By: Wolf359
Originally Posted By: Speak2Mountain
Brainstorm: If more DI and Turbo DI engines had manually transmissions would that alleviate or eliminate certain problems inherent of this type


That ship sailed a long time ago along with crank windows and manual locks. Automatics can last pretty long now. With a stick, you eventually need to drop the transmission and replace the clutch, the cost of which is about what the option on an automatic costs. Plus no one knows how to drive them because many models don't even offer it as an option.

Some say the issue is the fuel and use of top tier gas is more important with DI engines.


Interesting. I guess our 180k+ mile cars (driven in traffic and around town, two people even learned on one of them) that rotted around the transmissions (with original clutches) must not have gotten the memo.

I can think of a few ATs that required multi-thousand dollar overhauls around the 150-200k mark.

Going by your logic:
AT: $1000 AT acquisition + $3000 refurbishment at 200k = $4000 lifecycle cost
MT: $1000 clutch replacement at >180k = $900 lifecycle cost

And $1000 is being pretty highly paid for a clutch job...

So if $1000=$4000, I must have learned math wrong.

Top
#4550149 - 10/21/17 12:07 PM Re: Manual Transmissions and DI/GDI engine issues [Re: Kamele0N]
Delta Offline


Registered: 04/20/14
Posts: 1150
Loc: South Central PA
Originally Posted By: Kamele0N
Eliminate....you can revv it much easier on a highway in 4th or 5th gear to burn all the deposits


If you're in the know. If you shift my GTI the way the dash indicates you are lugging all the time. 45mph in 6th gear, yea no thanks...
_________________________
'17 VW GTI 2.0T - 6MT - 7K
'15 Camry SE - 2.5 - 19K
'99 S10 - 2.2 5MT - 153K

Top
#4550197 - 10/21/17 01:22 PM Re: Manual Transmissions and DI/GDI engine issues [Re: Speak2Mountain]
69GTX Offline


Registered: 09/23/15
Posts: 3815
Loc: Connecticut
I would think for the majority of manual transmission driver's out there that they should expect at least a synchro change out in the 100K-175K mile range...less if they didn't pay attention to fluid changes or the right type of MT fluid along the way. If you're going 180K-200K miles on original clutch and transmission parts, you are probably in the top 5-10% of all users. Once you're inside a trans for shifting/synchro or shifting issues, that's probably another $1500-$2500 if you can't do it yourself. You will likely find other components to address besides just the synchro's.

My last auto transmission was at the 230K mile point when the engine died. It was still doing great...probably on its way to 250K-300K miles. Oddly, that was a poorly applied transmission known to give problems and typically fail in the 100K-175K mile range. Fwiw, I've had 4 manual transmission cars over the years, all muscle or performance V8's. The only failure to date was a throw out bearing...but I've also never driven one past the 55K mile point either.
_________________________
----------------

2001 Lincoln Cont 4.6L DOHC/ 39K mi / QS HM 5w30 / FUG XG2
1999 Camaro SS M6 /19K /Mobil 1 0w40 /Fram UG /GM MTL-ATF
1969 Ply GTX/RRs

Top
Page 1 of 2 1 2 >