can somebody please clear this up for me .....

theykallmekem · 01-05-2009, 06:29 PM

i am chasing my tail on this one

reguarding the fluid content and levels of automatic transmission fluid, haynes manual states (i beleive) that i should use dexron II ATF for automatic transmission fluid. and for the rear differential --also on automatic vehicles-- to use SAE 90 gear oil for the automatic transmission.

my question is that my fluid is low (see pic) and i dont know what to fill this with (see pic) with, the dexron II ATF or is it the SAE 90 gear oil?? they both say automatic transmission, and this is really dumb and embarrasing for me to ask but i dont want to put in the wrong fluid. thank you guys

SolReaver · 07:31 PM

It is difficult for me to be sure as you didn't specify what kind of car you have. please place your make model and year in signature to help out. If you can stick your finger in there and see what is left, you should be able to tell if it is trans fluid or gear oil. My Porsche is a standard and I don't have one of those (whatever it is) but I would be happy to look in the factory manuals.

The 944 factory man under auto transmissions..

OK...Under capacities.. 37 03

Final drive is "Approx 1 liter hypoid gear lube sae 90 of API classification GL5 or MIL- 2105 B

Automatic Transmission is "Total volume with ATF coolant Approx. 6.5 Liters of ATF Dextron Change volume is Approx. 2.8 Liters ATF

Page 38 2b shows a pretty picture of the same thingie in your picture and Specifies that it is ATF. Apparently, there is a filler that hooks up to it. Nice to know. Clean the cap before adding. Start engine, move through the gears and then add to the lower mark. Test drive the car to warm it.

On a level surface, with the engine idling and the car in neutral and the parking brake applied, check the fluid level again. the difference between the upper and lower levels is 0.4 liters. Do not overfill The manual says that the fluid you add should be hand warm as expansion can cause a bad reading.

Well...that is my good deed for the day.. I hope you have found it highly entertaining, edifying and enlightening.

Dark Skies · 06:57 PM

dexron II ATF goes in the white reservoir with the red cap. Same stuff as goes in the brown power steering reservoir under the hood on the right. Levels should be checked with the engine running.

The SAE 90 gear oil goes in the differential box - if you're just topping up there should be a steel plug cap head (allen) up on the left roughly above the driveshaft and back. Undo the plug and then using a big syringe with a rubber pipe on the end (for easy access) top up the fluid until it just starts to dribble out. I usually stick a finger in the hole before topping up to feel the level so's I don't stick too much fluid in.

theykallmekem · 01-05-2009, 06:46 PM

Automatic 1986 Porsche 944 N/A. the fluid is too low for my to stick my finger in to get a feel for it thats why i posted =....(

i drive it once a week in the winter season and i just noticed its super low after warming her up after 15 minutes of driving.

in that picture, to the left of it is the muffler and tip of the rear of the car. i took the pic behind the car. sorry, hope that helps a little bit thank you again ^_^

theykallmekem · 01-05-2009, 07:03 PM

Quote:

Originally Posted by Dark Skies

dexron II ATF goes in the white reservoir with the red cap. Same stuff as goes in the brown power steering reservoir under the hood on the right. Levels should be checked with the engine running.

The SAE 90 gear oil goes in the differential box - if you're just topping up there should be a steel plug cap head (allen) up on the left roughly above the driveshaft and back. Undo the plug and then using a big syringe with a rubber pipe on the end (for easy access) top up the fluid until it just starts to dribble out. I usually stick a finger in the hole before topping up to feel the level so's I don't stick too much fluid in.

thank you !! that is what i wanted to hear thank you

and im also assuming sticking your finger in the hole is the same way to check the level of the gear oil as well. how much is enough so that its not too much ??

Dark Skies · 01-05-2009, 07:18 PM

Quote:

Originally Posted by theykallmekem

thank you !! that is what i wanted to hear thank you

and im also assuming sticking your finger in the hole is the same way to check the level of the gear oil as well. how much is enough so that its not too much ??

With the automatic gearbox fluid there's no need to stick your finger in for the level - it's has min and max lines on the reservoir - they're just a bit hard to see with all the road dirt on them. You just top up to the max mark. Take the car for a short drive and then check the level again. Top up if needs be.

The differential level is simply a case of filling up until the SAE 90 fluid reaches the bottom of the top up hole and then starts to ooze out. The reason I dip a finger in is to guage how much fluid I need to pump in. It's very thick so it's easy to put too much in without getting immediate feedback - so you end up watching it dribble all over your drive for a few minutes if you're a bit clumsy.

theykallmekem · 01-06-2009, 06:42 PM

Quote:

Originally Posted by SolReaver

It is difficult for me to be sure as you didn't specify what kind of car you have. please place your make model and year in signature to help out. If you can stick your finger in there and see what is left, you should be able to tell if it is trans fluid or gear oil. My Porsche is a standard and I don't have one of those (whatever it is) but I would be happy to look in the factory manuals.

The 944 factory man under auto transmissions..

OK...Under capacities.. 37 03

Final drive is "Approx 1 liter hypoid gear lube sae 90 of API classification GL5 or MIL- 2105 B

Automatic Transmission is "Total volume with ATF coolant Approx. 6.5 Liters of ATF Dextron Change volume is Approx. 2.8 Liters ATF

Page 38 2b shows a pretty picture of the same thingie in your picture and Specifies that it is ATF. Apparently, there is a filler that hooks up to it. Nice to know. Clean the cap before adding. Start engine, move through the gears and then add to the lower mark. Test drive the car to warm it.

On a level surface, with the engine idling and the car in neutral and the parking brake applied, check the fluid level again. the difference between the upper and lower levels is 0.4 liters. Do not overfill The manual says that the fluid you add should be hand warm as expansion can cause a bad reading.

Well...that is my good deed for the day.. I hope you have found it highly entertaining, edifying and enlightening.

thank you very much for the good deed of the day !! not only did i find it highly entertaining, edifying, and enlightening, it is very educational and in depth thank you

those factory manuals are def worth adding to a tool box

and dark skies, it is very dirty there i barely can see the min-max mark your right. i had to give her a scrub real good lol thank you again