Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA1991323 L4-1600 1597CCREPAIR AND DIAGNOSISSPECIFICATIONSFLUID TYPE SPECIFICATIONSFUEL
1991 Mazda 323 L4-1600 1597cc
Fuel
1991 Mazda 323 L4-1600 1597ccSECTION Fuel
***UPDATED BY TSB #405489 DATED FEB. 20, 1989
Mazda recommends the use of UNLEADED REGULAR gasoline only, in all vehicles not equipped with a turbocharger. Do not use, or recommend for use, any higher octane fuels. Starting, idle, and driveability problems may result. See factory Technical Service Bulletin #405489, titled "USE OF REGULAR UNLEADED GASOLINE".
FUEL REQUIREMENT Unleaded
RECOMMENDED OCTANE RATING 87 (R.O.N. method)
Mazda recommends the use of UNLEADED REGULAR gasoline only, in all vehicles not equipped with a turbocharger. Do not use, or recommend for use, any higher octane fuels. Starting, idle, and driveability problems may result. See factory Technical Service Bulletin #405489, titled "USE OF REGULAR UNLEADED GASOLINE".
FUEL REQUIREMENT Unleaded
RECOMMENDED OCTANE RATING 87 (R.O.N. method)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.