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Automatic Transmission Service

Transmission Fluid Explained

The purpose of automatic transmission fluid is to lubricate, clean, cool and provide the hydraulic pressure necessary to ensure smooth operation of the vehicle's transmission. An automatic transmission creates a great deal of internal heat from friction. Under normal driving conditions, a transmission operates at 175 degrees which is the normal range most fluids are designed to operate. If the fluid temperature goes much higher, the life of the fluid begins to plummet.

The problem is even normal driving can push fluid temperatures well beyond the safe limits. At elevated operating temperatures, automatic transmission fluid oxidizes, turns from a bright red to brown. As heat destroys the fluids lubricating qualities and friction characteristics, varnish begins to form on the internal parts (such as the valves in the valve body) which interfere with the operation of the transmission. If the temperatures get above 250 degrees rubber seals begin to harden which leads to internal leaks and pressure loss. The transmission begins to slip and eventually the clutches burn out and the transmission calls it quits.

Keep It Cool

Automatic transmission fluid is cooled by a small heat exchanger in the bottom tank or end tank of the radiator. Any number of things can push automatic transmission fluid temperatures beyond the system's ability to maintain safe limits: towing a trailer, mountain driving, driving at sustained high speeds in hot weather, stop-and-go driving in city traffic and rocking from forward to reverse when trying to get unstuck from mud or snow. Problems in the cooling system itself such as a clogged system, restricted air flow through the cooling fins, low coolant level, defective cooling fan, fan clutch, water pump, thermostat or radiator cap can diminish automatic transmission fluid cooling efficiency. See cooling and heating system service.

When to Service and How

At Honest-1® we start with the manufactures suggested interval, the most common being every 30,000 miles. We recommend an automatic Transmission Fluid Exchange Service with a filter being replaced every other time. Why a fluid exchange? Most automatic transmissions hold a minimum of 12 quarts of fluid. When the pan is removed and the filter changed you only get 3 to 5 quarts of fluid out, leaving 2 thirds to 3 quarters old fluid in the torque converter, lines, filter and hoses. When Honest-1® performs a Transmission Fluid Exchange Service we get all the old fluid out and replace it with new. It just makes sense. By performing a fluid exchange at regular intervals the filter can be replaced every other time.

The transmission fluid will also tell you if service is needed before the manufactures suggested interval. If the transmission fluid is starting to turn brown it is an indicator that a service should be performed. We check your transmission fluid during our famous Honest-1® 21-Point Inspection.

Three Services Offered

At Honest-1® we offer three Automatic Transmission Services to protect your transmission. They are the Basic, Preferred, and Supreme.

Basic Automatic Transmission Service

Some automatic transmissions are manufactured with a drain/check plug to perform a drain and fill service. The Honest-1® technician will:

  • Remove transmission drain/check plug
  • Drain the old transmission fluid
  • Inspect, clean and install the transmission drain/check plug with a new crush washer
  • Fill the transmission with new fluid according to the vehicle manufacturer's specifications
  • Dispose of your old fluid according to our Environmentally Sustainable Actions®Certification Program, protecting our environment

Preferred Automatic Transmission Fluid Exchange Service

The Honest-1® technician will:

  • Install the transmission fluid exchanger
  • Exchange all the old fluid with the correct new fluid recommended by the manufacturer
  • Install a transmission fluid conditioner for added protection
  • Inspect all lines and hoses for cracks or leakage
  • Inspect all linkages for proper connection and operation
  • Dispose of your old fluid according to our Environmentally Sustainable Actions®Certification Program, protecting our environment

Supreme Automatic Transmission Service

This service offers the Transmission Fluid Exchange Service plus a Transmission Filter Replacement. The Honest-1® technician will:

  • Remove the transmission pan
  • Remove the old filter and replace with a new filter
  • Clean the transmission pan and reinstall with a new gasket
  • Install the transmission fluid exchanger
  • Exchange all the old fluid with the correct new fluid recommended by the manufacture
  • Install a transmission fluid conditioner for added protection
  • Inspect all lines and hoses for cracks or leakage
  • Inspect all linkages for proper connection and operation
  • Dispose of your old fluid according to our Environmentally Sustainable
  • Actions®Certification Program, protecting our environment

Benefits:

  • Keeping your transmission fluid changed like your engine oil prevents expensive transmission repairs or even replacement.
  • Smoother shift control

Why Choose Honest-1

  • 24-Hour Towing
  • Family Friendly Facilities
  • Free Local Pick-Up & Delivery
  • Children's Play Areas
  • Same-Day Service On Most Vehicles
  • No Appointment Needed
  • Complimentary 21-Point Inspection
  • All Makes & Models
  • Discounted Rental Cars Available In Most Locations
  • Internet Cafe & Complimentary Beverages