better gas mileage
The advantage of a six speed manual transmission over a automatic transmission is you control the shifting. Now this can be a good or bad thing. It depends on how exprienced you are at driving and how well you know your car. Another advantage is that when you are driving or racing on a track you have another gear to go unlike other cars.
There is no option of manual transmission with the 2011 Grand Cherokee. The transmissions offered are: the 5-speed W5A580 transmission, and the multi-speed 545RFE overdrive transmission. The maximum extent of manual control over the transmission is ERS (Electronic Range Select) to select the top gear range for both transmissions.
Transmission oil over-filled.
The main advantage of ECL over TTL is speed.
If you over fill a manual transmission it will blow the overflow into the spew hole in your bell housing and chances are it will get on your clutch and cause it to slip.
An 8 speed manual hasn't been produced yet for a car. But I have heard of people switching Auto transmissions with manuals. People typically do it on the Chrysler/Dodge SRT8 charger/300. They don't like the 5-speed. I honestly don't think that there will be a fully manual gear box with a dry plate clutch with over six gears.
The main advantage that automatic cars have is the ease of which one can learn to drive in them. However, it takes a lt longer for changes in gear to take effect.
Almost any vehicle that came with a standard (manual) transmission, 3, 4, 5 speed can be changed over to automatic. You may have to incorporate an aftermarket floor shifter in order to make it work. recommend 700R4 TH350 or 400 trans be installed. Takes less to operate and very reliable.
Without intending insult, if you have to ask, it may be way over you're capability. Buy a repair manual (or look in your local library) and read it over 1st. It's not a minor job and the list of tools you'll need is extensive.
Speed of communication
The 2000 Nissan Altima retails for slightly over $15,000, and has a standard 2.4L engine. A 5-speed manual transmission comes stand, with an automatic as an option.
I was looking at the ( 1996 ) Ford F-150 owners manual and it shows for the 5 speed Overdrive manual transmission ( Mazda and ZF ) that you would have to buy ( 4 quarts / 4 liters ) and you would have a little left over