According to the 1998 Mercury Mystique owners manual :
For the 2.5 liter V6 engine :
With engine oil filter change :
( 5.8 U.S. quarts / 5.5 litres )
Pretty much the same, except for perhaps slightly different trim. They should bolt right on, though.
15.5 gallons
My '97 Mystique 4 cyl calls for 5W-30 oil. Check the owners manual, if you don't have it, google for it. As for brand, I use Pennzoil, but it's all pretty much the same.
4.5 quarts
.9 lbs of freon
four quarts
2.1 quarts
A 1998 Quest should hold about 4- 5 quarts of oil.
Probably around 75-100 lbs., I am assuming its a cast iron head?
Exactly 7 litres
Need to know what engine you have.
28oz if completely empty