RX-7 4V is 4.2 - 4.4 quarts
RX-7 FI is 4.4 - 4.7 quarts
for 1981-1990 rx7, it is recommended to run:
above 15*F (-9*C) - 20w40, 20w50
above -15*F (-26*C) - 10w40, 10w50
-15*F to 85*F (-26*C to 29*C) - 10w30
Below 32*F (0*C) - 5w30
below 0*F (-18*C) - 5W20
for 1991
above -15*F (-25*C) - 10w30
Below 32*F (0*C) - 5w30
SAE 10W30
Yes.
4 qts 10w30 Motor oil (name is your choice) Recommended: Castrol GTX, Castrol GTX High Mileage
10w30
Yes, you can use 10 W 30 motor oil in a 2003 Mazda Protege. If you live in areas where the temps are very cold, 5 W 30 is recommended.
10w30
10w30 oil is what is recommended
10w30
10w30
10w30
5w30 or 10w30
10W30 in the engine.