1989 Plymouth Horizon AutomaticFACTORY OEM SERVICE PROCEDURE

Quick Lookups: Fluids

FLUID CAPACITIES
Fluid Type Application Standard Metric Fluid Spec Note S/H
Air Cond Refrigerant 2.38 LBS. 1.07 KG R-12 S
Automatic Transmission Fluid 4.00 QTS. 3.78 L Automatic Transmission Fluid Plus Type 7176 (Preferred) or Automatic Transmission Fluid DEXRON II S
Brake Fluid N/A N/A DOT 3 Brake Fluid S
Engine Coolant 9.00 QTS. 8.51 L 50/50 mixture of Ethylene Glycol Base Antifreeze and water Includes: 1 pt. in coolant reserve tank. S
Engine Oil 4.00 QTS. 3.78 L API - SAE 5W-30 (Below 100Deg.F), 10W-30 (Above 0Deg.F), 15W-40 (Above 10Deg. F), 30 (Above 20Deg.F) S
Fuel Tank 13.00 GALS. 49.21 L S
Manual Transmission Fluid 2.30 QTS. 2.17 L Automatic Transmission Fluid Plus Type 7176 (Preferred) or Automatic Transmission Fluid DEXRON II S
Windshield Washer Fluid N/A N/A Windshield Washer Fluid Follow the Manufacturer's Instructions for the mixture ratio. S
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.