maintenance myths

[bigfootlives]

rob, againt my better judgement i need to ask this simple question.
you purchased a $32,000 crew cab daully to haul your fifth wheel with, it has a 4L80E
transmission, at 45,000 miles do you really want 6 quarts of trans fluid drained out and a new filter leaving the old 6 quarts in, your actually paying full price for a half service.
Funny when you purchase a new transmission from just about any one, there warranty states you need to flush the system, but dont forget they dont recomend that service until its fails.

[robc]

Great point, but tell me a shop that has a flush machine that doesn't sell it everyone, including little Mrs. Grandma who drives a 4cyl economy car. It is as necessary for her application?

I agree that the trans and coolant flushes have been the most usefull and thus the older products. I was really thinking of engine, power steering, brake, refridgerant flushes. I could still go either way on many of them.

But there is no requirement that anyone have a trans flush performed. If I feel it necessary that would be my opinion and really needs to be phrased as such.

And I am not a tech but I would understand the big reason why a trans system needs flushed after replacement is because there are all kinds of particles in the system from the failure. Great point, but tell me a shop that has a flush machine that doesn't sell it everyone, including little Mrs. Grandma who drives a 4cyl economy car. It is as necessary for her application?

I agree that the trans and coolant flushes have been the most useful and thus the older products. I was really thinking of engine, power steering, brake, refrigerant flushes. I could still go either way on many of them.

But there is no requirement that anyone have a trans flush performed. If I feel it necessary that would be my opinion and really needs to be phrased as such.

And I am not a tech but I would understand the big reason why a trans system needs flushed after replacement is because there are all kinds of particles in the system from the failure. Under normal fluid use the friction material that is worn off is designed to flow through the system and get caught in the filter before being sent upsteam again. But like I said I am not a tech.
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** Rob, Editor Dealersedge/WD&S **
Help is only a message post away!
robc@dealersedge.com

[This message has been edited by robc (edited 02-20-2005).]