I have been told by a few of the mechanics at work before changing your oil put a few litres of diesel through your engine, apparently gives your engine a real good flush and when you put the new stuff in, it stays a lot cleaner. Anyone else heard this before?
Diesel in your oil
- Thread starter alphabet
- Start date
Help Support Nissan Navara Forum:
scooba_285
Member
i haven't heard this before, i would just use proper oil flush from supercheap etc
Bvandermaat
Member
Have not heard the diesel one but I have heard Kerosene. Either way I use oil flush like Scooba stated and the flush through about 2l with the sump plug in and let it drain then fill her up. I have no idea how much mine holds because of the turbo and oil cooler but it seems to be around 7.5-8L
diesel in oil is a really quick way of stuffing the turbo bearings.
K
Krankin
Guest
I personally dont use any type of oil flush in any of my engines....they are either new or rebuilt engines (clean), so I know they will stay clean due to regular oil changes with some quality engine oils.
ST-R
Member
I agree. 5000km intervals and quality oils. I also drain the engine for as long and possible and pour a few hundred ml of new oil through the engine with the sump plug out, small waste but flushes the oil sitting in the pan out.
Regards
Greg
tony d22
Member
Never used an oil flush and never will.
joe2006
Member
I have heard of it but not something I would do unless I was desperate.
Like tipping a can of Ajax down the intake to deglaze bores.
Like tipping a can of Ajax down the intake to deglaze bores.
albatross
Member
Iv been told this by a diesel mechanic as well. Also seen the result of it been done. The oil was clean but the bearings were scored and all messed up, the turbo bearings wrecked and head damaged. It doesent take long. Remember oil works by making a oil wedge between the highly machined bearing surfaces. If this oil wedge is not there, damage occures very quickly. And diesel does not have the viscosity of lube oil therefor a oil wedge does not form. Hence damage really quick.
Not worth it at all for 'Clean Oil'.
Change oil + filters on reguler service intervels, keep air filters clean and have breather filters installed and changed after each dirty trip (I use the $1.50 paper filter type from autobarn, keep a few spare in the glove box)
and you should not have a problem!
Enjoy!
Not worth it at all for 'Clean Oil'.
Change oil + filters on reguler service intervels, keep air filters clean and have breather filters installed and changed after each dirty trip (I use the $1.50 paper filter type from autobarn, keep a few spare in the glove box)
and you should not have a problem!
Enjoy!
also diesel doesn't have all the HP additives etc that oil has in it.
diesel is a lousy lubricant.
those ZD30 owners who have had the misfortune of the injector spill line leaking diesel into the oil will now what i mean. a destroyed turbo is usually the first sign.
K
Krankin
Guest
o you tease ! 
joffo81
Member
- Joined
- Mar 6, 2011
- Messages
- 225
- Reaction score
- 0
My father has been putting some diesel (not sure but I thought only about a cup) through his Nav for a couple of years now and reckons it helps BUT he has the 3.2 Litre non-turbo engine. I personally don't ad anything to my Nav with the ZD30 engine.
joe2006
Member
My wifes aunty drinks a teaspoon of kerosene every day to keep her healthy. She is heading toward 90 so who am I to say it doesn't work?
K
Krankin
Guest
in which way????
K
KraftyPg
Guest
So when are you going to start doing it to the Nav, or don't you want the Nav to last 90 years?
joe2006
Member
I should post a picture of her & ask your thoughts on the matter. 
K
KraftyPg
Guest
Only if she is drinking the kero in the pic, after all we need proof.
