@Thuo, what would you like to know? ( you opening a floodgate now... ) :-)
-If you meant to ask about a CVT auto transmission, it's fitted more and more on Nissan saloons, selected X-trails etc. Toyota also catching up on this technology, I saw this gearbox on an Avensis. Here is a explanation :
http://en.wikipedia.org/wiki/Continuously_variable_transmission . What does the CVT-fitted vehicle feel like = its almost similar to sitting in a plane on take-off from stationary. You do not feel the gear changes at all. The CVT auto drive presents instant acceleration, holds revs within the 3,000-4,500rpm, does not have any D-3-2-L manual selection of the normal auto gearboxes. It does provide a sport mode which holds the engine revs between 4,500-6,000rpm upto 100Km/h, after which it would be adviceable to switch to normal CVT drive.
- With the CVT auto transmission fitted to a matched normal aspirated but flowed engine ( like the Nissan QR20DE engine = 2,000cc = 145bhp ), it will produce much better throttle responses and on average a better fuel consumption.
- If you meant to ask about the CVT Auto Transmission Oil type, then the best way to check the original is printed on the gearbox dip-stick. The Nissan saloon uses this green-colour fluid which is specially designed for the CVT gearbox and must be changed as per mileage below. I managed to get the service manual which explains the oil change procedure. Incase you own a Nissan with the CVT drive, here is the following procedure that may work:
a) Warm up car by driving about 10 minutes ( ensure the temp is between 50c-80c deg )
b) Drain from the return pipe, while re-filling at charge side, while the engine is idling.
c) After the change, check the oil level. Warm up car, short drive for 10 minutes and check the "hot" level on the gearbox dip-stick.
HTHs.
Rgds.
On Tue, Nov 15, 2011 at 4:27 PM, Thuo Wilson
<lixton@gmail.com> wrote:
One for the petrol heads who own vehicles fitted with CVT tranmissions. A word of advice, whatever you do, don't use the normal ATF fluid. I've got a Nissan ( my favourite car, after giving up on the pajero ) and I found a supplier who had the original NS-1 oil for the gearbox. The CVT transmission oil needs to be changed every 60,000Kms and there is a special process of doing it.
FYI.
This is one field i like to gather info - very poor in auto mobiles - Aki could we have more technical explanation if you have one? I could be a victim you know.
Wilson./