I use changing plane from web Valvoline. I would like to change Motor oil valvoline 0w-40, differential OIL, and Transaxle OIL...
but How long can I used this oils.... when they wrote that service interval is 30000km, does it mean, that i must only check oil.... or I must change IT!!!

There are materials from VALVOLINE:

Audi
A4, S4
S4 2.7 V6 30V Biturbo quattro (1997-2000)
Engine Capacity 6 liter
Use: Normal
Service intervals:
Change 15000 km / 12 months
SynPower XL-III 5W-30
SynPower MXL 0W-30
SynPower 0W-40


Differential, rear 01H Capacity 1,9 liter
Use: Normal
Service intervals:
Check 30000 km
HP GL-5 80W-90


Transaxle, manual 01E Capacity 3,2 liter
Use: Normal
Service intervals:
Check 30000 km
SynPower TDL 75W-90


Hydraulic brakes/clutch system
Use: Normal
Service intervals:
Change 24 months
Brake & Clutch Fluid DOT 3/4


Power steering
Use: Normal
SynPower Powersteering Fluid


Cooling system Capacity 6 liter
Use: Normal
Coolant Maxlife AF
Coolant AF Extreme

 

I thought that the differential oil (bmw/audi) lasts for the life of the car and it does not have to be changed.... I might be wrong.

 

if this car about 10 years old...i thing that the ideal time for change...nothing is for whole life.

 

Now I work at Valvoline and we use A Gl 5 based gear oil that I am almost certain is not compatiable with our cars. You have to use a GL 4 based fluid. I wish we could use the stuff becuase I get a phat discount but ofcourse I cant.....bullshit

 

i dont understand... info what i wrote on the top is from web valvoline...it doesnt true?

 

The products they offer to you may be different then what they have here in the States. Over here we only offer GL 5 so check the fluid and see if it is GL 4. I just dont want to see you fill up on the stuff and blow the tranny and diff. Just go to the local valvoline or parts store that offers it and see if it it in fact GL 4. cheers

 

in czech republic is GL5...that says our dealer...and the europe dealer says the same.

 

If the dealer says ok then I would do it. I read in our books at my work that they use GL 4 but the dealer knows best......sometimes ha

 

i am little bit afraid of gl-5 look at valvoline.com there says gl5

 

find out what the dealer is using