Bruck

I am considering a turbo timer or a pre-lube pre-oiler. I do not need the pre-oiler but NEED something to cool my turbos. Which do you think i should put in. I like that the pre-oiler cools the turbos without running the car. But i think the timer is cheaper and less work to the car? Thanks for your opinions.<ul><li><a href="http://www.enginelube.com/turbo.htm">http://www.enginelube.com/turbo.htm</a</li></ul>

LaserK04

You really don't need any of that crap, like turbo timers, etc.

Use good oil and you won't have all the coking in the oil lines and all that stuff. Synthetics have made that a thing of the past. I still don't get why people insist on installing these types of devices. If you are that worried, stay out of the boost in the last mile of driving....

a4turbo18t

FYI, the pre-oiler is not to be used to cool down the turbos, it should only be used when you start the motor to bathe the turbo shaft immediately with oil that can be bone dry when you start the engine and the oil line cannot feed the oil upon start of ignition. On the other hand, it is the function of the turbo timer that will electronically run the motor on the time you set after the ignition is off to cool down the turbos.

frank

do Not bother..after break-in, switch to synthetic oil..end of story

digital dog

Glad you mentioned that. I read an article somewhere (could have been in an archive here) that it's a bad idea to put synthetic in the S4 prior to break in. After it seems like a good idea. So I suppose 1000 miles with the factory stuff is fine, them get synthetic.

dangonay

one-way oil retention valves which would keep oil in the cylinder heads and prevent it from flowing back into the oil pan (from the S4tech.pdf file I read).

This sounds like it would not allow the engine to be bone dry when you first start it. That's the main purpose of the Pre-Luber. I still think the pre-luber is a great idea, though. Just might not be necessary in an S4.

Fatima

frank

I switched our 99 M3 to synth, at 2K miles
and oil consumption went UP significantly

until finally at 9K, I switched to mineral oil out of shear frustration

oil consumption went down, and finally stopped around 16K


that's why I'm going to wait until 10K on my WRX

(i hear their piston rings and cylinder liners ae just as hard as german engines)

if was you, I'd wait until at least 5K

Bruck

Cool so with synthetic oil i don't need to let the turbo's cool? THATS AWESOME.