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Ian C
03-04-05, 21:19
V160/161 Manual Gearbox FAQ

What oil should I put into my MANUAL 6-SPEED Gearbox?
Quite simply you have 1 choice. V160 oil. It is Toyota part no. 08885-01306. Order the fluid well in advance of wanting to do a change as Toyota don't usually have it in stock at the dealer. You cannot get this fluid from anywhere else as far as I know.

So how much V160 oil do I need and how much is it?
It's about £27 a litre and you'll require 1.5L to fill the gearbox, so you'll need 2x1L cans.

What happens if I don't use V160 oil?
Using oil such as Redline MTL or other 75w90 "gearbox oils" will destroy the oil seals in the gearbox. Not only that but you will find it can become incredibly difficult to change gear especially when cold. 1st and 2nd gears are the most likely to highlight the issue. The 6-speed box is tough, but it's positive. It clunks into gear easily but noticably. With the wrong oil in it you just sometimes can't get it into 2nd at all! Anything more than a satisfying clunk into gear is potentially an issue with your oil.

Ok, so how do I change the oil?
This is best done on a 4-post ramp, or over a pit because you need good access and the car needs to be flat.
Undo the inspection cap with a ?hex? key on the ?passenger? side of the gearbox.
If the car is hot from a run then some oil may come out, but it reality none should come out if the car is level.
Now undo the gearbox drain cap underneath the gearbox and drain the oil into a container (V160 oil is light red colour...and so at this point you should know if the right stuff was in it)
Stick the drain plug back in and re-fill with V160 oil to the inspection hole...this is easiest to achieve with one of those large oil syringe pumps as you cannot directly pour from the can into the fill/inspection hole.
Once full replace the inspection cap.

See also:
Gear Ratios (http://www.mkivsupra.net/vbb/showthread.php?t=35923)

-Alex