This information is from the Comma Oil website. Thought it might be usefull for anyone looking at what oils to use in their vehicle. Although it's not a "Surf", they are the same vehicle, more or less. Use AQM Dextron II in the Auto Box, as not listed here because the 4 Runner is manual. Hope this is helpfull.
Make TOYOTA
Model 4 Runner 3.0 Turbo Diesel
Engine DT
Year 1994-
Application Recommendation Capacity (ltr)
Engine (DT) Recommended DIESEL LITE 5.3
Alternative PREMIUM LITE
Manual transmission SX 75W90 GL-5 3
Automatic Transmission
Differential(s) LS 80W90 GL-5 2.2
Coolant XSTREAM GREEN 9
Brake Fluid BRAKE FLUID DOT 3
Wheel Bearings MULTIPURPOSE LITHIUM GREASE No.2
Front differential EP 80W90 GL-5 1.9
Transfer Box SX 75W90 GL-5 1.1 / 1.2
Hide Notes Oil Change Intervals
Lubricant / Capacity Notes
There are no notes to display for this model
General Notes
1. Power steering (where fitted except MR2): AQM, some older models: AQF. Refer to handbook. MR2: Refer to Owners Handbook
2. Engine oil viscosity recommendations (prior to model year 2000): 10W-30, 10W-50, 15W-40, 20W-40, 20W-50
3. Alternative recommendations, Engine, Petrol, MY >2000: <-29°C to 10°C, 5W-30 (exceptions: VVTi) VVTi: <-29°C to >38°C, 5W-30 -18°C to >38°C, 10W-30 -12°C to >38°C, 15W-40 -7°C to >38°C, 20W-50
4. Alternative recommendations, Engine, Diesel ,MY >1999: -35°C to 30°C, 0W-30 -30°C to 40°C, 5W-40 -25°C to 30°C, 5W-30 -20°C to 30°C, 10W-30 -20°C to 40°C, 10W-40 -15°C to 40°C, 15W-40 -20°C to 50°C, 10W-50 -15°C to 50°C, 15W-50 -5°C to 50°C, 20W-50
5. Additional manual gear oil recommendations: GL-4 may replace GL-5, 80W-90 may replace 75W-90 but latter strongly preferred in both instances
6. Additional differential oil recommendation: EP 80W90 GL-5 may replace EP 80W90 GL-5
7. Cooling systems. Use XSTREAM GREEN at a concentration of 50% or one part XSTREAM GREEN with one part water. Manufacturer's recommendation: Toyota Long Life coolant
http://www.commaoil.com/
Point to note. I am using EP90 GL5 in my Rear Diff. SX75w90 GL5 in my Front Diff and Transfer Box. This oil is suitable for SAE75/80/85/90 applications and can be used in Hypoid systems as it is "shear stable". I am using EP90 in the Rear Diff on recommendation from a Toyota Tech, who runs it in his truck.
Make TOYOTA
Model 4 Runner 3.0 Turbo Diesel
Engine DT
Year 1994-
Application Recommendation Capacity (ltr)
Engine (DT) Recommended DIESEL LITE 5.3
Alternative PREMIUM LITE
Manual transmission SX 75W90 GL-5 3
Automatic Transmission
Differential(s) LS 80W90 GL-5 2.2
Coolant XSTREAM GREEN 9
Brake Fluid BRAKE FLUID DOT 3
Wheel Bearings MULTIPURPOSE LITHIUM GREASE No.2
Front differential EP 80W90 GL-5 1.9
Transfer Box SX 75W90 GL-5 1.1 / 1.2
Hide Notes Oil Change Intervals
Lubricant / Capacity Notes
There are no notes to display for this model
General Notes
1. Power steering (where fitted except MR2): AQM, some older models: AQF. Refer to handbook. MR2: Refer to Owners Handbook
2. Engine oil viscosity recommendations (prior to model year 2000): 10W-30, 10W-50, 15W-40, 20W-40, 20W-50
3. Alternative recommendations, Engine, Petrol, MY >2000: <-29°C to 10°C, 5W-30 (exceptions: VVTi) VVTi: <-29°C to >38°C, 5W-30 -18°C to >38°C, 10W-30 -12°C to >38°C, 15W-40 -7°C to >38°C, 20W-50
4. Alternative recommendations, Engine, Diesel ,MY >1999: -35°C to 30°C, 0W-30 -30°C to 40°C, 5W-40 -25°C to 30°C, 5W-30 -20°C to 30°C, 10W-30 -20°C to 40°C, 10W-40 -15°C to 40°C, 15W-40 -20°C to 50°C, 10W-50 -15°C to 50°C, 15W-50 -5°C to 50°C, 20W-50
5. Additional manual gear oil recommendations: GL-4 may replace GL-5, 80W-90 may replace 75W-90 but latter strongly preferred in both instances
6. Additional differential oil recommendation: EP 80W90 GL-5 may replace EP 80W90 GL-5
7. Cooling systems. Use XSTREAM GREEN at a concentration of 50% or one part XSTREAM GREEN with one part water. Manufacturer's recommendation: Toyota Long Life coolant
http://www.commaoil.com/
Point to note. I am using EP90 GL5 in my Rear Diff. SX75w90 GL5 in my Front Diff and Transfer Box. This oil is suitable for SAE75/80/85/90 applications and can be used in Hypoid systems as it is "shear stable". I am using EP90 in the Rear Diff on recommendation from a Toyota Tech, who runs it in his truck.