Transmission Oil Change

From Honda S2000 Wiki


Transmission oil change intervalls

The owners and service manual recommends the following intervalls:

  • Normal driving conditions: Every 144.000km / 90.000miles or 6 year (which ever comes first)
  • Harsh driving conditions: Every 48.000km / 30.000miles or 6 months (which ever comes first)

Definition of harsh driving conditions

The service manual states the following definition:

  • Less than 8km (5 miles) per trip on non-freezing weather conditions.
  • Less than 16km (10m miles) per trip on freering temperatures.
  • In hot weather climates with temperatures above 32°C/90°F.
  • Extensive idling or long preiods of stop-and-go driving (e.g. as taxi or commercial deliver vehicle).
  • Driving on mountainous roads.
  • On muddy, dusty, or de-iced roads.


Additionally definition from other S2000 owners:

  • Sport and fast paced driving with a lot of VTEC engagment.
  • Long preiods of driving at 150km/h (93 mph) or above.
  • Racetrack driving (most people recommend to change the oil after each racetrack visit).

Recommended transmission oil

See: Transmission_oil#Recommendations

Required tools and fluids

  • 2L / 2qts transmission oil (or a little more if you would like to "flush" the transmission)
  • New crush washer for the oil drain bolt (Honda #91409-14000)
  • New crush washer for the oil filling bolt (Honda #91409-20000)
  • 17mm socket
  • Ratchet
  • Torque wrench (39Nm / 29 lb-ft and 44Nm / 33 lb-ft)
  • Oil catch pan
  • Floor jack + 4 jack stands
  • A lube pump since it is hard to fill the transmission without it

How to change the transmission oil

Pre-conditions and jacking up the car

  • Make sure that the engine is not cold but also not too hot. 2-3 bars on the temp gauge are fine.
  • Put the car in the first gear and set the parking brake.
  • Jack up the car on the front by using the central jacking point near the engine.
  • There are two front-jacking-points on each side. Place one jack stand on each side at the jacking-point that is the furthest away from the front wheel.
  • Lower and remove your floor jack and continue jacking up the rear by using the jacking point on the differential.
  • Place your jack stands on the left and right side jacking points at the rear of the car.

Draining the oil

  • The oil pan is located under the engine and the drain bolt is located on the front of the oil pan at passenger side.
  • Place your oil catch pan below the engine oil drain bolt.
  • Remove the engine oil filling cap on the top of the engine.
  • Remove the engine oil drain bolt with a 17mm socket from the oil pan.
  • The engine oil will now drain from the oil pan and you might need to re-adjust your oil catch pan.
  • While the engine oil is draining I recommend to also remove the oil filter. You will notice that once the filter is gone, more oil will come out of the engine oil drain.
  • Remove the oil filter completely. Be carefull as engine oil will leak out of the filter and engine. Make sure that the oil filter and its gasket both came off.
  • The oil filter is located above the engine oil drain bolt.


  • Once all the oil has be drained I like to fill fresh oil into the engine to "flush" the engine with the new oil.
  • Wait until no oil (either old or new from "flushing") comes out of the engine.

Adding new transmission oil

  • Fill the new oil filter about half full with fresh engine oil.
  • Use your finger to to apply fresh engine oil to the gasket of the new oil filter.
  • Screw the new oil filter on the engine until the gasket touches the engine.
  • Now either use a filter socket and a torque wrench to tighten to filter to 24Nm / 18 lb-ft or do 7/8 of a full turn of the filter.
  • Replace the old crush washer from the engine oil drain bolt.
  • Usually the crush washer will have to sides, one that has a rounded edge and one that has a sharper edge. The sharp edge should face the oil pan.
  • Hand tighten the engine oil drain bolt. Then use your 17mm socket and a torque wrench and tighten it to 40Nm / 29 lb-ft.
  • You can now fill the rest of you new oil into the engine.
  • Start the engine and let it idle for a few seconds.
  • After 10 minutes check the oil level according to: Engine_oil#Reading_the_oil_level_dipstick_correctly