What is recommended oil for 1991 4x4 Toyota truck?

Usually the oil SAE Weight is imprinted onto the oil filler.

Toyota Corolla 4A-F engine. Owners manual says API SF/CC or SG SAE from 5W-30 to 20W-50 Oil Change Interval recommended every 5000 miles under severe conditions.

https://www.google.com/search?q=Oil+recommend+for+a+Toyota+conquest+4af+1.6+16v

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Hi

Are you sure the exhaust system is good?

Thanks!

91 toyota celica gts where do the two alternator connector wires opposite...

80w 90 gear oil is used in the manual transmission. DO NOT use 10w30 10w40 etc etc as these are motor oils and NOT transmission (gear) oil.

The fuel filter is underneath the intake plenum on the left side of the engine. To access it, you don't need to take off the intake or remove the starter like some have recommended. Take off the driver side front tire and access it through the wheel well. You may need to take off some plastic mud flaps and whatnot, but when I did this, it was a piece of cake. Make sure before you take off the banjo fittings on both sides of the fuel filter that you release the fuel pressure in the lines(take off the fuel cap).

There are two types of gear oil per say in a car/truck. Did you mean the engine oil or oil for the axle? Either way the engine oil is in the manual for the car, and for an axle you want at least an 80-90w oil.

hope this helps.

You need an air chuck, and i would recommend about 35 psi in there, hopes this helps for you

I usually go to a professional to get that kind of information.

the recommended octane is 87

put new cylinder head gasket cover.clean the engine,if its check the cylinder head boltes and tight.