pskrishnan

I own a W204, C Class CDI 250. Recently my mechanic / service advisor recommended to add engine oil alongwith diesel (fuel) in the fuel tank. He suggested any grade of engine oil mixed with fuel will make the engine more smoother. Is this something that forum members are aware off and would recommend, and if yes, would there be any positive and negative implications.




Shall appreciate views from experts in this forum




Thanks







Krishnan PS

Chennai

India

Gazwould

Wow , not heard of that one , but I do add JASO FB spec 2 Stroke and 2-EHN to my 250 CDI .

pgsurface

It all depends on the quality of fuel at the pump. If your diesel has a decent set of additives at the pump, then no. Don’t add it.. use a diesel fuel additive instead.

Using motor oil in the tank on a modern CDI will likely not do you any good... plus, if yours is fitted with a DPF, burnt motor oil in the exhaust aftertreatment system is a big no-no.

Gazwould

Cetane number isn't disclosed over here so you're in the dark between regular and so called premium diesel and I strongly suspect along with the extra price to be marketing .

So I add my own .

optimusprime m1

Not true bit early for this April Fools Day Joke

Arnold_R

Check the owner's manual, if it says you can do that, then by all means...

optimusprime m1

Any one read this in their manual yet?? And if you do you just might get puled over for smoke

Gazwould

Lol , just using 2 Stroke reduced my MOT smoke opacity test in a 2003 Euro 3 in half .