Dos and don'ts to diesel engine.

[Transporter]

One more thing !! - I see there are some threads about using diesel additives - some every tank, and some every 5000k.

Is there any preference/brands for my 2010 103 DSG Tiguan ?

I used Fuel Doctor couple times in our Tiguan, but every oil change I use Wurth CRD Additive.

You can also use Moreys Diesel Smoke Killer I just found from their website that it is now suitable for DPF. http://www.moreys.co.nz/details.php?...11&productID=2

[Preen59]

Great thread.

I like Fuel Doctor from supercheap because it is a groovy green colour.

You never cease to amuse me, Greg. hahaha.

[kaanage]

Not really — you do the same thing every time you lift your foot off the loud pedal.

Think about it...

I have and it isn't.

Roll starting either requires a sudden sharp load as the clutch is dropped while the car is moving, forcing compression cycles from a standstill or a fade in of the clutch until compression is just overcome. All is this is harder than full engine braking when the engine is already running as you have the inertia to overcome which adds to the shock loading on the transmission components.

[rogerd63]

Hi I just read in the does and donts from the link about contamination in the oil of a diesel. I always start my T5 1.9 in the morning and let it idle/warm up while i get my stuff ready to head off to work.Probably 3 to 4 mins. I figuired this was a good thing instead of heading off on a cold motor.
Any thoughts on this? Ps i also let the car idle for a few mins before i turn it off to let it cool the turbo a bit.?

Just interested on others thoughts.

[Greg Roles]

At idle, a diesel's exhaust is flat out achieveing 100 degrees! As such it will take FAR longer to warm up by idling, and the engine adds pure exhaust to the intake via the EGR to try and help speed up the process - this switches off when the coolant hits about 40 degrees from memory. Just my opinion, but it's far better to drive it to warm it up, quietly at first, but in my measuring of oil temps, it takes a fraction of the time to reach oil temps by driving as compared to idling.

Letting it idle down isn't a bad idea, but again, I just drive it quietly for the few minutes before stopping.

[Transporter]

Hi I just read in the does and donts from the link about contamination in the oil of a diesel. I always start my T5 1.9 in the morning and let it idle/warm up while i get my stuff ready to head off to work.Probably 3 to 4 mins. I figuired this was a good thing instead of heading off on a cold motor.
Any thoughts on this? Ps i also let the car idle for a few mins before i turn it off to let it cool the turbo a bit.?

Just interested on others thoughts.

As Greg said.
+
You really should start up and get moving (30s idle max.), warming the engine by gentle driving (and not just the engine, the whole drive train). The reason for this is to get the engine at the operating temperature ASAP. The cold engine is running richer mixtures which contribute to acid formation from unburned fuel, which etches the cylinder walls and pollute the oil in the sump, so you want to shorten that time. That's what wears out the engine most.

[hiho]

Thats funny, on frosty mornings when im not on a hill thats steep enough for roll start I use ether

[Greg Roles]

I'll go give a roll start a crack now - wish me luck!