Idbowhunter

Hey Guys, I am new to the forum and the world of diesel, but what a great world it is so far. Anyways after 11,000 on my 07 quad ctd I change to rotella t syn. oil I have noticed a oil smell coming from the truck its not burnt smell but its definately an oil odor, I was wopndering if anyone else has experienced anything like this, I have double checked and there are no leaks. Thanks for any input and what a great site.

rmjim

ya thats why the call it rosmella

CoolumConst

are you getting any seeping around the valve cover. I changed to rotella syn and it seems that the gasket between the valve cover and head is leaking ever so slightly. the head looks like it is damp.

Idbowhunter

Nope no seepage so far, I didn't notice as strong of smell today but maybe im just getting used to it.

annabelle

Yep, Rotella smells.

Desert Dually

is it only the synthetic Rotella that smells? or the Dino stuff too? Where is the odor coming from on a new engine with tight seals and no leaks?

THURENfab.

Smell will go away after 1000 miles or so..

donhov

Smell comes form the crankcase breather located at the rear of the engine. And as above after some miles the smell will mostly go away. There are many posts concerning this issue but totally normal and a "feature" of Rotella and you don't even have to pay extra for it.

danc46

Rotella synthetic does NOT have the smell that standard Rotella does.

kelley15

I disagree Rotella "synthetic" stinks also , just not as strong.

truckjunkie

I concur with the statement above - Rotella syn does stink as well, just not as bad as the Rotella dino.

I just bought some Delo 400 today (CJ4 rated - ugh) to replace the Valvoline that's in the truck now. I know for a fact the Valvoline doesn't smell, but it looked like the Delo 400 did a little bit better (again CJ4 rated) in the TDR oil test than the Valvoline. For more information on that go to this thread: https://www.dieseltruckresource.com/...d.php?t=136899

Does the Delo 400 stink? I thought I read somewhere that it didn't....

donhov

When I changed to the Delo 400 smell gone. Used it for my 04.5 and also for eh first oil change at 5000 on my 07. Still NO SMELL !!!!!!

XLR8R

Rotella dino has an oderous waxy additive (forget what it does ) that "dissapates" after a week or two.

woodrep

Ahh yes, once again the sweet smell of Rotella.

SuperGewl

You will get that smell from any 10% synth when you first put it in. It will go away as the oil burns n some.