Seymour Legge
New Member
- Joined
- Jun 16, 2014
- Messages
- 5
- Car
- C220 Saloon
Dear All,
I understand that ATF levels in automatic gearboxes are important and that they should be measured with the engine running and at particular temperatures.
I also understand that accurate temperature readings can be obtained using the Star equipment.
I was wondering if there was "a rule of thumb" means of establishing the correct temperature. For instance, once my engine is well and truly warmed up after many miles and hours of motoring the coolant is stable at 90 C. Can the same be said to apply to the transmission fluid - after, say, 2 hours and 100 miles is it reasonable to assume that it is at around 80 C ?
I should add that I have the correct Tx dipstick marked with 25 C and 80 C bands.
Sorry to ramble
I understand that ATF levels in automatic gearboxes are important and that they should be measured with the engine running and at particular temperatures.
I also understand that accurate temperature readings can be obtained using the Star equipment.
I was wondering if there was "a rule of thumb" means of establishing the correct temperature. For instance, once my engine is well and truly warmed up after many miles and hours of motoring the coolant is stable at 90 C. Can the same be said to apply to the transmission fluid - after, say, 2 hours and 100 miles is it reasonable to assume that it is at around 80 C ?
I should add that I have the correct Tx dipstick marked with 25 C and 80 C bands.
Sorry to ramble