Gathered Data

Over the history of this project I’ve found myself searching for bits of information regarding the sorts of materials and fluids that my car uses. I’ve had to comb through a lot of different sources to get this info, so I thought I’d include it here for anyone else who has a similar car and was wondering what sort of brake fluid or engine oil to use. Keep in mind that while this information is probably generally applicable to all 240s (at least all post-85 models) I was always keeping my ’92 model in mind when collating it.

B230F Engine
Oil capacity (including filter): 4.0 US qtrs./3.85 liters
Oil type: SAE 10W/30 or SAE 15W/40 is recommended for use in driving conditions that raise oil temperature and increase oil consumption. (i.e., mountain driving, trailer towing)
Coolant capacity: ~2.5 gallons (9.4 liters)
Coolant type: 50/50 coolant/distilled water. It should be phosphate free. I use the blue Zerex G48 pre mixed type.
AW70 Transmission
Capacity: 7.8 US qtrs. (7.4 liters)
Fluid type: ATF type Dexron II-D. Dexron III also works
Replace: every 20,000 miles (32,000 km)
Power Steering
Capacity: 0.8 US qtrs./0.75 liters
Fluid type: ATF type F only
Replace: no fluid change required
Capacity: 13.5 oz./0.4 liters
Fluid type: DOT 4 non-LV
Replace: every 2 years or 30,000 miles (48,000 km)
Rear Axel
Capacity: 1031 1.7 US qtrs./1.6 liters.
Fluid type: API GL-5 (MIL-L-2105 B or C)
Viscosity: SAE 90 or 80W/90
Capacity: 15.8 gallons/60 liters
Rating: AKI Octane 91 (87 minimum)