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 MANUALSOLDSMOBILE1991TORONADO V6-3800 3.8LREPAIR AND DIAGNOSISMAINTENANCESERVICE INTERVALSNORMAL SERVICE105000 MI OR 168000 KM
1991 Oldsmobile Toronado V6-3800 3.8L
105000 MI or 168000 KM
1991 Oldsmobile Toronado V6-3800 3.8LSECTION 105000 MI or 168000 KM
Lubricate
Steering and Suspension
Lubricate all grease fittings in suspension and steering linkage. Lubricate transmission shift linkage, hood latch, hood and door hinges, parking brake cable guides, underbody contact points and linkage. Clean and lube power antenna mask.
Replace
Fluid Filter - A/T
Fluid - A/T
Change automatic transmission fluid and filter every 15,000 miles if the vehicle is mainly driven under one of more of these conditions: In heavy traffic where the outside temperature regularly reaches 90 degrees F (32 degree C) or higher. In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police car or delivery service. If the vehicle is not used under any of these conditions, replace the fluid and filter at 100,000 mile intervals.
Engine Oil
Clean/Repack
Wheel Bearing
Clean and repack front wheel bearings at each brake relining or every 15,000 miles, whichever comes first, when the vehicle is used in such service as door-to-door delivery. If vehicle is not used in such service, clean and repack bearings at each brake relining or 30,000 miles, whichever comes first.
Steering and Suspension
Lubricate all grease fittings in suspension and steering linkage. Lubricate transmission shift linkage, hood latch, hood and door hinges, parking brake cable guides, underbody contact points and linkage. Clean and lube power antenna mask.
Replace
Fluid Filter - A/T
Fluid - A/T
Change automatic transmission fluid and filter every 15,000 miles if the vehicle is mainly driven under one of more of these conditions: In heavy traffic where the outside temperature regularly reaches 90 degrees F (32 degree C) or higher. In hilly or mountainous terrain. When doing frequent trailer towing. Uses such as found in taxi, police car or delivery service. If the vehicle is not used under any of these conditions, replace the fluid and filter at 100,000 mile intervals.
Engine Oil
Clean/Repack
Wheel Bearing
Clean and repack front wheel bearings at each brake relining or every 15,000 miles, whichever comes first, when the vehicle is used in such service as door-to-door delivery. If vehicle is not used in such service, clean and repack bearings at each brake relining or 30,000 miles, whichever comes first.
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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.