F250 - which engine oil?

Depends on whether you are going to use synthetic or mineral. If you are like a lot of owners that change the oil every 5000 k's then synthetic can become expensive and probably not warranted.

I think the Castrol RX Super Diesel oil is the one recommended by the the american forums and I think it says on the drums recommended for american diesel engines.

This is what I will be using in my F250 but any of the well known brands of oils will be just as good as long as it is good quality, but this goes without saying.

Following is info I have gathered
OIL INFORMATION

I have had a few requests on this and: Per my Tip # 29 on “Saving Your Automatic Transmission”, the key is Synthetic oils have a higher boiling point than the mineral oils. I was talking then about Transmax Z, which besides taking harder work and higher temperatures it has what they call more “Surface Tension” meaning it sticks to the material faces under load better. Well it is now on their Website at www.castrol.com.au and click on the “Lube Guide” and go to make and model and such… Castrol are now recommending the Transmax Z for “Heavy Towing” Which takes you to: Site Link

It looks like this: (NOTE 134 AT BOTTOM RECOMMENDING TRANSMAX Z) Commercial Vehicle, Light /Medium & 4x4 F-250 4x4, V-8 Turbo Diesel (2001-2006) FORD F250 4x4, 7.3 Litre V8 Turbo Diesel (2001-2006)

CRANKCASE

CASTROL RX SUPER
A SAE 15W-40, API CH-4/SJ mid ash multigrade detergent diesel engine oil specifically designed to suit the requirements of the latest US heavy duty diesel engines. CASTROL TECTION PLUS A mid ash SAE 15W-40 multigrade diesel engine oil approved for use by all major European heavy duty truck manufacturers. Also suitable for certain Japanese and most US engines. Meets the tough standards of ACEA E5 and Volvo VDS-3 for wear protection, bore polish and oil consumption control. SAE 15W-40, ACEA: E3, E5, B3, MB 228.3, Volvo VDS-2, VDS-3, API CI-4, MAN 3275, Global DHD-1, Mack EO-M Plus, Cummins CES 20071, 72, 76, 77, 78

Service Refill Capacity: 14.2 Litres (includes filter) (See Note 292)

MANUAL TRANSMISSION

CASTROL TQ DEXRON III
Automatic transmission fluid formulated to the Dexron® III specification. Provides enhanced friction durability, wear performance, oxidation resistance and cold temperature fluidity. May be used in all vehicles where Dexron® fluids are recommended.

Service Refill Capacity: 5.5 Litres (See Note 134)

AUTOMATIC TRANSMISSION

CASTROL TQ DEXRON III
Automatic transmission fluid formulated to the Dexron® III specification. Provides enhanced friction durability, wear performance, oxidation resistance and cold temperature fluidity. May be used in all vehicles where Dexron® fluids are recommended.
Service Refill Capacity: 16.7 Litres (See Note 134, 13)

DIFFERENTIAL

CASTROL SAF-XA

Full synthetic rear axle fluid incorporating Castrol's most advanced transmission fluid technology. Engineered to provide protection at the extremes of high and low operating temperatures, it is our prime recommendation for rear axles used in competition, severe duty and long drain applications. Suitable for both limited and non-limited slip rear axles. SAE 75W/140,API GL6
Service Refill Capacity: 3.3 Litres (See Note 15)

POWER STEERING

CASTROL PS FLUID
A mineral based fluid suitable for most power steering systems where the following specifications are nominated: Dexron®, Dexron® II & Dexron® III, SAE 10W or 10W-20 engine oil, ISO 32 or 46 hydraulic oil, Ford M2C-33 F/G, Ford M2C-138 CJ, Ford M2C-166H, Ford Mercon, Ford SQM-2C-9010A and Mitsubishi Power Steering Fluid. (See Note 302)

4WD TRANSFER

CASTROL TQ DEXRON III
Automatic transmission fluid formulated to the Dexron® III specification. Provides enhanced friction durability, wear performance, oxidation resistance and cold temperature fluidity. May be used in all vehicles where Dexron® fluids are recommended.

Service Refill Capacity: 1.9 Litres

4WD DIFFERENTIAL

CASTROL SYNTRAX 75W/90
Full synthetic manual transmission, transaxle and rear axle lubricant with outstanding extreme pressure, synchroniser and high temperature performance. Recommended for vehicles that combine gearbox and hypoid differentials, rear axles of light cars and secondary drive axles (front and rear) of 4WD vehicles. SAE 75W/90, API GL5.

Service Refill Capacity: 1.8 Litres (See Note 225)
Notes
* Includes Oil Filter
13 Dry fill capacity shown, fill only to full mark.
15 Rear differential.
134 For heavy duty or towing applications use CASTROL TRANSMAX Z.
225 Manufacturer recommends a 75W-90 gear oil meeting Ford Spec. No. WSP-M2C201A.
292 May also use CASTROL ENDURON S.
302 May also use CASTROL TRANSMAX M, CASTROL TQF or CASTROL TQ DEXRON III.

Red Line Oil Info
Recommendation as follows
Engine Oil - Red Line 15W40 Diesel Oil
Manual Gearbox - Use Red Line MT90
If Automatic - Use Red Line High Temp ATF
Front and Rear Diffs - Use Red Line 80W140 Gear Oil
Cooling System - Use distilled water and WaterWetter (pink).

New SHELL oil ROTELLA T for the new Ultra Low Sulfur Diesel but can be used in engines older than 2007 claims will give better performance, less wear, improve oxidation, reduced soot and deposits.

ROTELLA is a new Shell product in america and I don't think it is in Oz yet.

Cheers
Stewart

Stewart answered you perfectly. I only use Castrol RX Super engine oil. Buy in 20 L drums for less that $100.00 Have had to buy from Supercheap lately. Cost was $89.00
Do not go near Repco. They are thieves.

Barrie

Hi Mother hen
I have run RX super for 160k on Anthony Manyanii ( BT18 ) recomendation and I'm happy.