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#2809451 - 11/21/12 07:48 AM Techron and Diesel
cchase Offline

Registered: 11/03/09
Posts: 4021
Loc: New England
A question of curiosity-

I have a bottle of Techron that is many years old, probably 15 years at least. On the bottle it states that it is for gas and diesel engines.

I was looking up the PDS for Techron a few moments ago, and I see that it specifically states:

TECHRON Concentrate Plus is designed for gasoline
carbureted or fuel injected spark ignition engines. To
keep the entire fuel system clean, use TECHRON
Concentrate Plus every 3,000 miles or at scheduled oil
change intervals, not to exceed twice per oil change.

Will not harm catalytic converters and oxygen sensors.

Not recommended for air-cooled two-stroke engines.

Not recommended for diesel engines.

Does anyone know what has changed?

#2809465 - 11/21/12 07:59 AM Re: Techron and Diesel [Re: cchase]
Donald Offline

Registered: 03/21/04
Posts: 18023
Loc: Upstate NY
I would just use it in a gas vehicle.
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)

#2809505 - 11/21/12 08:43 AM Re: Techron and Diesel [Re: cchase]
javacontour Offline

Registered: 06/26/03
Posts: 9521
Loc: Illinois
Perhaps it's the diesel engine. With all the new pollution controls, perhaps they felt it best to avoid the diesel engine?
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#2809643 - 11/21/12 11:06 AM Re: Techron and Diesel [Re: cchase]
Brons2 Offline

Registered: 09/16/03
Posts: 2775
Loc: Austin, Texas
With all the new pollution controls

And common rail direct injection with the very high PSI delivery. (but DI gas cars have that too?)

So anyway if you have an old IDI diesel with a rotary injection pump and so forth, give it a whirl! laugh

6.9 IHC anyone? laugh
Mine: 2007 Kia Rondo LX 2.4 I4 5 pass, M1 HM 10w30, OEM filter
Hers: 2010 Rav4 Sport 2.5 I4, M1EP 0w20, OEM filter

#2809675 - 11/21/12 11:26 AM Re: Techron and Diesel [Re: cchase]
JHZR2 Offline

Registered: 12/14/02
Posts: 39338
Loc: New Jersey
I was wondering the same thing. Perhaps if one had an MSDS from back then to compare with now, it would be telling.

I wonder if there are studies in the literature on the use of PEA for diesel cleanup and its effects on fuel properties.

#2809677 - 11/21/12 11:27 AM Re: Techron and Diesel [Re: cchase]
Sunnyinhollister Offline

Registered: 06/27/09
Posts: 630
Loc: Hollister, CA
Lubricity of the diesel fuel has changed (newer fuel is less)and the lubricity requirements of the newer injection systems are greater due to the higher pressures involved.
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#2809686 - 11/21/12 11:36 AM Re: Techron and Diesel [Re: cchase]
NHGUY Offline

Registered: 10/09/11
Posts: 4744
Loc: USA
The feds now watch what additives get put into diesels,the manufacturer must state wether you can or cant (its an emission thing),back in the day it was unregulated,now it is.Its been this way for 3-4 years now.

#2810189 - 11/21/12 08:07 PM Re: Techron and Diesel [Re: Sunnyinhollister]
JHZR2 Offline

Registered: 12/14/02
Posts: 39338
Loc: New Jersey
Originally Posted By: Sunnyinhollister
Lubricity of the diesel fuel has changed (newer fuel is less)and the lubricity requirements of the newer injection systems are greater due to the higher pressures involved.

Youre implying then that PEA and whatever else is in the fuel add is less lubricious than the benzothiophenes that create the "lubricity".