First off, the '91 was the first year that the yj came with the fuel injected 4.0 not the carbureted 4.2. The oil capacity is the same for both, 6.0 quarts including a new oil filter.
With $$$ anything you want.
6.0 Quarts.
The Jeep 4.0L holds six quarts of engine oil.
You should not tow more than 2,000 pounds in a 1988 Jeep Wrangler. This is considering the engine is a 4.2 liter engine.
4.5 quarts
5 quarts
6 qts.
6 quarts
4.5 quarts
5 quarts
The Jeep Wrangler with the 4-cylinder automatic has a maximum towing capacity of 1,000 pounds. The Jeep Wrangler with the 2.5 liter engine and 5-speed manual transmission has a maximum towing capacity of 2,000 pounds.
The fuel capacity of a 2008 Jeep Wrangler is 15 gallons.