Would have been built with R12. Can be retrofitted to R134a.
R134a
10w30
It came from the factory with R12. I would suggest you convert it over to R134a. R12 is very expensive if you can find it. If it is low then you also have a leak that must be fixed.
The Jeep Grand Cherokee did not come out until 1993. It used a 5281090 Mopar filter.
R134a
10w30
Green
Green up till the 2001. Red after 2002.
The old green in a 50-50 mixture.
The grand Cherokee is a body style, sport is a trim package that is used on all jeep models(wrangler, Cherokee, grand Cherokee, patriot, ...)
The price of the Jeep Grand Cherokee depends on the year it was made, whether it is new or used, and if it it used, the condition of it. A new 2013 Jeep Grand Cherokee costs around $26000.
R134a