No, they are different.
Yes
A 1992 Jeep Wrangler with the 4-cylinder takes 4 quarts, and the 6-cylinder takes 6 quarts.
No.
Yes.
Count the number of spark plugs, 4=4 cylinder, 6=6 cylinder.
2.5L 4 cylinder or 4.0L 6 cylinder2.5L 4 cylinder or 4.0L 6 cylinder
10W30
1 3 4 2
14 mpg city/ 17 mpg highway for a 4-cylinder
4 cylinder- AX5 6 cylinder- AX15
10w30