1990 Acura Integra Manual Transmission Fluid

The 1990 Acura Integra manual transmission requires specific fluid types and maintenance procedures to ensure optimal performance and longevity. This guide covers fluid specifications, capacity, change intervals, procedures, and troubleshooting for the 5-speed manual transmission. Proper fluid maintenance is essential for smooth shifting, gear protection, and overall transmission health.

Fluid Specifications

The 1990 Acura Integra manual transmission requires specific fluid types for proper operation and gear protection.

NOTE: Always use GL-4 rated gear oil if not using Honda MTF. GL-5 can damage brass synchronizers.

Transmission Capacity

Proper fluid quantity is crucial for transmission operation and cooling.

• Total Capacity: 2.1 quarts (2.0 liters)
• Drain & Refill: 1.9 quarts (1.8 liters)
• Fluid Type: Honda MTF or equivalent
• Change Interval: Every 30,000 miles or 2 years

WARNING! Overfilling can cause seal damage and fluid leaks.

Change Intervals

Regular fluid changes maintain transmission performance and prevent premature wear.

1. Normal Driving: Every 30,000 miles or 2 years
2. Severe Conditions: Every 15,000 miles or 1 year
3. Racing/Track Use: Every 5-7 events or 5,000 miles
4. Check Interval: Every oil change (visual inspection)

Severe conditions include: Towing, frequent short trips, extreme temperatures, dusty environments.

Tools & Materials Required

Gather all necessary items before starting the fluid change procedure.

Fluid Change Procedure

Follow these steps for proper manual transmission fluid replacement.

1. Park on level surface and engage parking brake.
2. Lift vehicle and secure with jack stands.
3. Place drain pan under transmission.
4. Remove filler plug first (ensures you can refill later).
5. Remove drain plug and allow fluid to drain completely.
6. Clean drain plug and reinstall with new washer if needed.
7. Pump new fluid into filler hole until it begins to overflow.
8. Reinstall filler plug and tighten to specification.
9. Lower vehicle and check for leaks.

Torque Specifications: Drain/Filler plugs: 33 lb-ft (45 Nm)

Checking Fluid Level

Regular fluid level checks help identify leaks and maintain proper lubrication.

1. Park vehicle on level surface.
2. Clean area around filler plug.
3. Remove filler plug with 3/8" ratchet.
4. Fluid should be at bottom of filler hole threads.
5. If low, add fluid until it begins to overflow.
6. Reinstall filler plug and tighten properly.

CAUTION! Vehicle must be level for accurate fluid level check.

Common Symptoms of Bad Fluid

Recognize when transmission fluid needs replacement.

Recommended Products

Use quality fluids for optimal transmission performance and protection.

• Honda Genuine MTF: 08200-9006 (1 quart)
• GM Synchromesh: 12345349
• Red Line MTL: 75W-80 GL-4
• Amsoil Manual Transmission Fluid: MTF
• Pennzoil Synchromesh: 1 quart bottles

Note: Aftermarket fluids should meet Honda MTF specifications.

Safety Precautions

Always follow safety procedures when working under vehicle.

1. Use jack stands - never work under vehicle supported only by jack.
2. Wear safety glasses to protect from fluid splash.
3. Use gloves to prevent skin contact with used fluid.
4. Work in well-ventilated area.
5. Allow transmission to cool before draining hot fluid.
6. Dispose of used fluid properly at recycling center.

WARNING! Transmission fluid can be extremely hot after driving.

Troubleshooting

Common transmission fluid related issues and solutions.

Professional Service: Consult certified mechanic for persistent issues.