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Better engine break in with a manual transmission? #4656701
02/05/18 10:14 AM
02/05/18 10:14 AM
Joined: Jan 2018
Posts: 22
Ontario, Canada
heyleescomet Offline OP
heyleescomet  Offline OP

Joined: Jan 2018
Posts: 22
Ontario, Canada
Do you think manual trans vehicles have their rings broken in better due to the more significant engine braking or something along those lines.

My Dad and sister both have Dodge Neons, Dads being an 01 r/t 5 speed with 250k that will consume visibly no oil through a 10k oil run, sisters an 05 base model with 150k that takes about 1L per 5k driven.

Same goes for my truck with a 4.6L/manual, no oil loss in the 4k ive driven it. While my moms 02 f150/4.6L/auto uses also around 1L per 5k driven.

just a thought, Since these vehicles I believe to be common oil users. but maybe its just the upkeep of the owners.


2003 F-150 4.6L, 5 speed, PP 5w30
1962 Mercury Comet 200ci, Shell 15w40
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656734
02/05/18 10:37 AM
02/05/18 10:37 AM
Joined: Jul 2005
Posts: 31,668
NY
demarpaint Offline
demarpaint  Offline

Joined: Jul 2005
Posts: 31,668
NY
It is easier to do compression braking, and hold gears longer with a stick during break in. But in all honesty you can get similar results with an automatic transmission if you give it some thought during the break in period. Having said that, there are many people who believe a modern engine requires no real break in. And another set of people believe the lot boys moving new cars around dealerships prior to delivery to the customer beat the [censored] out of them, and did the break in before the owner even sees the vehicle.


God Bless Our Troops

Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656745
02/05/18 10:48 AM
02/05/18 10:48 AM
Joined: Dec 2006
Posts: 8,367
Canuck living in California
KrisZ Online content
KrisZ  Online Content

Joined: Dec 2006
Posts: 8,367
Canuck living in California
I think it does. Why? Because wit a manual tranny, just by driving normally, the engine will see higher RPM and compression braking. No extra thinking is required from the driver.

With automatic transmissions, as demarpaint pointed out, the driver has to be aware what need to be done to get higher RPM and compression braking, which means you are aware of engine break in, most people aren't.


2015 Grand Caravan 3.6L - 31k miles.
2006 Mazda 3 2.0L - 171k miles
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656762
02/05/18 10:58 AM
02/05/18 10:58 AM
Joined: Oct 2014
Posts: 13,296
Canyon County Idaho
CT8 Offline
CT8  Offline

Joined: Oct 2014
Posts: 13,296
Canyon County Idaho
Engines almost can't help but breaking in. The gas pedal has the most influence helping with the breakin process.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656785
02/05/18 11:18 AM
02/05/18 11:18 AM
Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline

Joined: Sep 2015
Posts: 6,172
Kalifornia Kollective
If auto-trans drivers would learn to use the shift lever and downshift once in a while, they'd engine brake too! It's the nut behind the wheel that will make some small difference ...

But, unless it's a "new" 1950's engine (or earlier), the rings are seated by 500 miles no matter what.

Now, for those that don't ever wind and engine, the ring ridge may be formed too low ... So the next owner may pop a top ring when he/she buys it used, and starts driving it for real oilburner

Last edited by BrocLuno; 02/05/18 11:19 AM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656797
02/05/18 11:24 AM
02/05/18 11:24 AM
Joined: Jul 2015
Posts: 4,342
New England
madRiver Offline
madRiver  Offline

Joined: Jul 2015
Posts: 4,342
New England
Nope. It is one variable in about 100.

Biggest influence is owner over entire period then the engine design.

Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656815
02/05/18 11:45 AM
02/05/18 11:45 AM
Joined: Jun 2002
Posts: 19,757
Iowegia - USA
MolaKule Offline
Global Moderator
MolaKule  Offline
Global Moderator

Joined: Jun 2002
Posts: 19,757
Iowegia - USA
One could argue the opposite as well (AT's better), but I don't see any data to show that one or the other does a better job at Rin-In.


"I can't change the direction of the wind, but I can adjust my sails to always reach my destination." Jimmy Dean
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656849
02/05/18 12:19 PM
02/05/18 12:19 PM
Joined: Mar 2012
Posts: 1,455
San Antonio, TX
E150GT Offline
E150GT  Offline

Joined: Mar 2012
Posts: 1,455
San Antonio, TX
Manual may not get stuck rings as easy.but thats about it. My Mazda has 50k and uses a quart of oil every 3k Miles or so. It has a manual transmission. My truck has a manual and uses no oil with no oil loss over an oil interval and it has 248k.


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 251k 5w30
2016 Mazda6 Touring 6MT - 57k 10w30
2006 Buick Lucerne CXL 3.8 31k 5w30
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656854
02/05/18 12:21 PM
02/05/18 12:21 PM
Joined: Jan 2011
Posts: 799
Anaheim, CA
zorobabel Offline
zorobabel  Offline

Joined: Jan 2011
Posts: 799
Anaheim, CA
OP, I was of the opinion that cars with manual transmissions burn more oil because of the engine braking, and it certainly has been my experience. And now you post this... just when I thought I had it figured out.


1997 Maxima 197k, Castrol GTX Synblend 5W-30, FL400S
2004 Corolla 197k, VWB + SSS + Rislone cocktail, MGL51516
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656884
02/05/18 12:46 PM
02/05/18 12:46 PM
Joined: Mar 2011
Posts: 2,206
Indiana
Indydriver Offline
Indydriver  Offline

Joined: Mar 2011
Posts: 2,206
Indiana
No doubt.


2014 Camaro 2SS/RS LS3 Vert 14,000 M1
2012 Sienna 85,000 M1
2007 Tahoe 155,000 M1

Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4656897
02/05/18 01:07 PM
02/05/18 01:07 PM
Joined: Jan 2018
Posts: 22
Ontario, Canada
heyleescomet Offline OP
heyleescomet  Offline OP

Joined: Jan 2018
Posts: 22
Ontario, Canada
So many things factor into it I guess one could never really be certain. Interesting to read other folks views and experiences.


2003 F-150 4.6L, 5 speed, PP 5w30
1962 Mercury Comet 200ci, Shell 15w40
Re: Better engine break in with a manual transmission? [Re: CT8] #4656935
02/05/18 01:53 PM
02/05/18 01:53 PM
Joined: Mar 2017
Posts: 8,192
...
PimTac Offline
PimTac  Offline

Joined: Mar 2017
Posts: 8,192
...
Originally Posted By: CT8
Engines almost can't help but breaking in. The gas pedal has the most influence helping with the breakin process.



This one.

Some modern automatics downshift to use engine braking though its not as obvious as when done with a manual. My Mazda downshifts all the time when slowing.


Cannot see signatures any longer so it doesn’t matter.
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4657021
02/05/18 03:07 PM
02/05/18 03:07 PM
Joined: Dec 2006
Posts: 8,367
Canuck living in California
KrisZ Online content
KrisZ  Online Content

Joined: Dec 2006
Posts: 8,367
Canuck living in California
New automatics may downshift like manuals, but unless kept in a manual or sport mode, will do it at very low RPM. You want moderate to high RPM acceleration and deceleration using compression.


2015 Grand Caravan 3.6L - 31k miles.
2006 Mazda 3 2.0L - 171k miles
Re: Better engine break in with a manual transmission? [Re: heyleescomet] #4657039
02/05/18 03:22 PM
02/05/18 03:22 PM
Joined: Aug 2003
Posts: 13,428
NE,Ohio
Rand Offline
Rand  Offline

Joined: Aug 2003
Posts: 13,428
NE,Ohio
I dont think it matters.

FWIW the subaru FB25 engines that had oil burning.. the MT vehicles were a way higher % with the issue vs the auto

The op's question is like asking what is the best oil to get my engine to 1 million miles when the rest of the car falls apart at 150000 miles.

Its an answerable question but not super relevant to real world.


2019 Jeep Cherokee Trailhawk 2.0T
Re: Better engine break in with a manual transmission? [Re: zorobabel] #4657868
02/06/18 12:01 PM
02/06/18 12:01 PM
Joined: Dec 2009
Posts: 687
Wash, DC
circuitsmith Offline
circuitsmith  Offline

Joined: Dec 2009
Posts: 687
Wash, DC
Originally Posted By: zorobabel
OP, I was of the opinion that cars with manual transmissions burn more oil because of the engine braking, and it certainly has been my experience. And now you post this... just when I thought I had it figured out.


The OP theory does not conflict with your opinion.
Engine braking can cause a broken in engine to use more oil AND engine braking can help the break in process.


2017 Hyundai Tucson SE FWD
SuperTech synth, 5w-30, 5000mi/12mo OCI
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