The last model year for the full size Ford Bronco was 1996 .
The Ford Bronco NEVER used the 4.6 liter V8 engine
A 1989 Ford Bronco II has a ( 2.9 liter / 177 cubic inch V6 engine )
The engine choices in the full size Ford Bronco for 1990 were the 4.9 liter straight six cylinder , or the 5.0 liter V8 , or the 5.8 liter V8 engines
No , the 2.9 liter V6 engine in a 4X4 , 1990 Ford Bronco II is fuel injected
With engine oil filter change : The 2.8 liter V6 engine in a ( Ford Ranger ) holds ( 5 quarts )
The 5.8 liter ( 351 cubic inch ) V8
According to the 1996 Ford Bronco Owner Guide : With engine oil filter change : ( 6.0 U.S. quarts , 10W-30 is the PREFERRED oil for the 5.0 L in a 1996 Ford Bronco )
I own A 1994 Ford Bronco Eddie Bauer with a 5.0 liter engine. The answer to your question is the oil capacity is exactly 6 quarts for an oil change.
.054 inch , according to fordparts.com for the 5.0 liter V8 engine
According to one of Fords websites : For a 1990 Ford Bronco II , 2.9 liter V6 engine : The spark plugs are gapped at ( .044 inch )
I BELIEVE the 2.9 liter V6 engine in a 1988 Ford Bronco II is rated at ( 140 horsepower from the factory )
The highest safe RPM for a 5.8 liter Ford Bronco from 1993 is about 3,800. The engine will rev above that but it can cause damage.