Oil Change intervals and Oil Type

Your vehicle's engine requires oil meeting GM Standard GM6094M. You should look for and use only an oil that meets GM Standard GM6094M. SAE 5W-30 is best for your vehicle.
The best Brand is 5W-30, Mobile 1 synthetic oil, but you can use Castrol GTX 5W-30, too. It is very important to use only one barand of engine oil.
When the CHANGE ENGINE OIL SOON message in the Driver Information Center (DIC) comes on,
means that an oil change service is required for your vehicle.
If the engine oil life system is ever reset accidentally, you must service an oil change for your vehicle within 3,000 miles (5 000 km), or three months wichever comes first, since your last service.
The maintenace tune ups for this car are scheduled at 25K, 50K, 75K, 100K and so on.
Dealer recomend to change the transmission oil and filter at Maintenace II, at 50K, and the air filter too. Use only DEXRON®-VI Automatic Transmission Fluid.
The dealer sugest to flush the radiator every 75K and use 50/50 mixture with distilled water, and use only DEX-COOL. I recommend to flush every 50K.

We have five recomendation for you. Out of this, SYNTEC oils are most recommended for your vehicles. CASTROL EDGE, SAE 5W-30 PI*, SL 5W-30 - an advanced proprietary formula that provides performance and protection in extreme conditions such as towing, hauling, high and low temperatures, rapid acceleration and stop and go traffic. CASTROL GTX HIGH MILEAGE, SAE 5W-30 PI*, SL 5W-30 - CASTROL GTX high mileage - helps extend the life of your engine. CASTROL GTX, SAE 5W-30 PI*, SL 5W-30 - `superior sludge protection. CASTROL GTX exceeds demanding U.S. high shear and stay-in-grade requirements for viscosity breakdown protection. CASTROL SYNTEC BLEND, SAE 5W-30 PI*, SL 5W-30 - CASTROL SYNTEC blend - CASTROL SYNTEC blend is specially engineered with proprietary CASTROL GTX technology and CASTROL SYNTEC molecular components to provide superior short?trip protection*. * 5W30 AND 10W30 ONLY CASTROL SYNTEC, SAE 5W-30 PI*, SL 5W-30 - IN extreme tests, CASTROL SYNTEC 5W-30 maintains maximum horsepower longer than the leading conventional oil.

The best oil for Audi 1.9 TDI is CASTROL 0W30 SLX Longlife II (TDI Pump Nozzle) VW Norm 506.01 . This oil is issued by Castrol special for TDI - Pumpe Duse (Pump Nozzle) engine as longlife oil (50,000 km service interval, or two years).
Also a normal service oil (15,000 kmservice interval, or one year) is Castrol TXT 5W40, and Castrol EDGE 5W30, for TDI Pump Nozzle engines, VW Norm 505.01.

FULLY SENTETACHIC OIL ,VERY GOOD FOR ENGINE WITH ALOT OF MILES KMS UP

Manufacturer calls for a 10w 30 oil. In all my Jeeps I run a 10w 40 oil with a container of lucas oil stabilizer. (I get way over 300K from all my engines)
I use synthetics though because the pour point is actually much lower than the 10 number and the protection actually is greater than the 40 number at temp, and the oil is practically immune to thermal breakdown.
As far as change intervals, you can change it at between 3,000 and 4,000 miles, with synthetics you can go actually as far as 10,000 miles with a filter change at the mid point. Most people are comfortable just going 5,000 and changing it though.
Filters are important as well...use a filter with the smallest micron rating and the largest internal surface area you can find.
There are as many opinions on oil and change intervals as there are pages in "war and peace" but I have done extensive research in this area due to my involvement in extreme horsepower (over 7,000hp) race engines. Though the oil in those is changed after every 1/4 mile pass, the properties of any lubricant are tested way beyond any normal limits.
The bottom line being, that synthetics last, conventional oils just don't.
And don't' forget....the race mobile has to be towed everywhere....used synthetics in the truck as well!!!
Good luck with your Jeep!!!

The best oil for Audi 1.9 TDI is CASTROL 0W30 SLX Longlife II (TDI Pump Nozzle) VW Norm 506.01 . This oil is issued by Castrol special for TDI - Pumpe Duse (Pump Nozzle) engine as longlife oil (50,000 km service interval, or two years).
Also a normal service oil (15,000 kmservice interval, or one year) is Castrol TXT 5W40, and Castrol EDGE 5W30, for TDI Pump Nozzle engines, VW Norm 505.01.

The best oil for A4 2000, 1.9 TDI, 85 kW, is CASTROL 0W30 SLX Longlife II (TDI Pump Nozzle) VW Norm 506.01 . This oil is issued by Castrol special for TDI - Pumpe Duse (Pump Nozzle) engine as longlife oil (50,000 km service interval, or two years).
Also a normal service oil (15,000 kmservice interval, or one year) is Castrol TXT 5W40, and Castrol EDGE 5W30, for TDI Pump Nozzle engines, VW Norm 505.01.

2.2 liter engine - 2.4 liter engine 5W30
Capacity with oil filter changed 3.8 liters.

If U look in your owners manual it tells U that type of stuff. If U don't have the manual for the oil it should tell on the dip stick. For the brake fluid its more than likely DOT 3 fluid.

Hope this helps

Matt

Castrol GTX 10w-30 or 5w-30 should work fine. Use 10w-30 if your in a state that gets temperatures below 35 in the winter.