Diesel Fuel Injection System Help Desk

[Dieseldude]

Sir DieselDude,

mine is innova 2013 D4D diesel engine. I would like to ask how many minutes for the turbo to cool down before shutting off the engine, city driving only....
You don't need to cool down before engine shutdown at city driving as the turbo does not reach temps that can cook oil in the turbo's internal oil drillings. High exhaust temps are reached only when an engine is heavily loaded. Cooked oil restricts oil flow within the turbo causing premature failure. Cool down is necessary for some engine applications like generator sets....... This is the reason why car manufacturers have never installed turbo timers on their engines.

BTW sir DD I used unioils euro4 diesel they said this is the cleanest diesel so far... is it true.... thanks.....
I don't have info on unioil specs...

[RevoSR]

Sir DieselDude,

mine is innova 2013 D4D diesel engine. I would like to ask how many minutes for the turbo to cool down before shutting off the engine, city driving only....
You don't need to cool down before engine shutdown at city driving as the turbo does not reach temps that can cook oil in the turbo's internal oil drillings. High exhaust temps are reached only when an engine is heavily loaded. Cooked oil restricts oil flow within the turbo causing premature failure. Cool down is necessary for some engine applications like generator sets....... This is the reason why car manufacturers have never installed turbo timers on their engines.

BTW sir DD I used unioils euro4 diesel they said this is the cleanest diesel so far... is it true.... thanks.....
I don't have info on unioil specs...

Thanks sir DD

[radiator3L]

Yes, Euro IV is the cleanest. But it is lacking in lubrication properties because of sulfur reduction. The whole reason to use the 2T OIL is because the diesel fuel now contains to low of a sulfur content which many of the older designed engines are designed to run on. The current Euro II is still not good for mechanical injection pumps.
2T OIL is an injector cleaner and using it every tank will keep your nozzles clean as well as your combustion chambers. It also reduces emissions so less carbon buildup in the combustion chambers and less soot.