Thread: Transmission Fluid as diesel additive ?

Bad for modern engines. The fluid contains unburnable components that will build up in the injection system.

If anything use 2T twostroke oil as its made to burn completely.

Originally Posted by Red90

Bad for modern engines. The fluid contains unburnable components that will build up in the injection system.

Beat me to it John.

It's as bad as the old wives tale advocating adding ATF to engine oil to improve detergency.

ATF's have bugger all detergents compared to an engine oil and their EP and AW additive packages are pretty weak in comparison too....

I did wonder... Another idea that's past its 'Use-By date'.

My Mechanic has seen an old MB handbook that endorses a small % of engine oil in the fuel, to lubricate and reduce some of the 'knock'.

His son is currently using 2-stroke oil, the stuff meant for injected-oil engines. As you say, it's a lubricant that's meant to be burnt. Makes sense.

I've also used 2 stroke oil as an additive and it did seem to make the engine run a little smoother. The general advice is to use the cheaper mineral based 2 stroke as the synthetic stuff does not mix well with diesel and ends up sitting at the bottom of the tank. Lots of diesel owners are doing this now since the low sulphur diesel was introduced which reduced the lubrication properties of the fuel.

Originally Posted by rick130

It's as bad as the old wives tale advocating adding ATF to engine oil to improve detergency.
....

Had a Kombi which hadn't been driven for a year, and had shocking valve "lash" (?) because the oil wasnt going into the hydraulic lifters properly.

Added a liter of ATF to the oil, drove it for 5 Kms and things improved out of sight.

Changed the oil and it was fine for the next couple of years!

Originally Posted by spudboy

Had a Kombi which hadn't been driven for a year, and had shocking valve "lash" (?) because the oil wasnt going into the hydraulic lifters properly.

Added a liter of ATF to the oil, drove it for 5 Kms and things improved out of sight.

Changed the oil and it was fine for the next couple of years!

KOMBI you hippy

Originally Posted by spudboy

Had a Kombi which hadn't been driven for a year, and had shocking valve "lash" (?) because the oil wasnt going into the hydraulic lifters properly.

Added a liter of ATF to the oil, drove it for 5 Kms and things improved out of sight.

Changed the oil and it was fine for the next couple of years!

All you did was reduce the oil viscosity, an xW-30 oil would have done much the same thing.
There aren't any cleaning benefits whatsoever using ATF