If your '02 Stratus has the same bolt pattern and your wheel wells have enough room to be able to turn fully. Only one way to find out. Do it!
The Stratus 4 door sedan and Stratus coupe are two different cars and share few if any parts. The wheels have different bolt circles. The sedan uses a 5x100mm wheel and the coupe uses a 5x114mm wheel. Not all Lexus's use the same bolt circle but most are 114mm. The center bore may be a problem, though. Check it before you buy anything.
There wasn't a 1991 Dodge Stratus.
No
No, it will not interchange.
you open the hood and put it in
You put brake fluid in the brake fluid reservoir on a 1998 Dodge Stratus. This is located on the master cylinder, under the hood, on the driver's side.
Because that is what dodge put on there......
Yes, you can put 20 inch rims on a 2006 Lexus GS 300 as long as the rims have the same bolt pattern as your existing rims. You should be aware though that putting bigger rims and tires on your vehicle can affect the gas mileage.
Yes
Premium is ok
If they are the same body styles, yes.
You put it in the coolant reservoir, a plastic container with a radiator cap on it
Remove the cap on the valve cover and pour it in there.