According to one of Fords websites :
For the 1992 Mercury Cougar , 3.8 liter V6 engine :
( the spark plugs are gapped at .054 inch )
Spark plug order? there is no such thing.
how to remove the door panel on a 1992 mercury cougar
On a 1992 Mercury Cougar ( which is OBD I , EEC IV ) There should be an EEC TEST connection in the engine compartment
R-12
According to my Chilton's Auto Repair Manual : A ( 1991 ) Mercury Cougar has a ( 19.0 US. gallon gas tank )
5 qts
8 spark plugs
According to a website I was looking at : For the 1992 Mercury Cougar , 3.8 litre V6 , 4 speed automatic transmission : ( 18 city / 25 highway , miles per U.S. gallon )
It came from the factory with ( 5W-30 )
The proper spark plug gap for a 1992 GMC Suburban 5.7 L is .035 thousandths of an inch. Many spark plug gaps are pre-set.
According to one of Fords websites : For a 1992 Mercury Topaz , 2.3 litre four cylinder engine : ( the spark plugs are gapped at .054 inch )
my 94 has tach machined on the coil mine is a 4.6L