For its 1986 launch, the Aerostar was introduced with two engines shared with the Ranger/Bronco II. A 100 hp 2.3L inline-4 (also shared with the Mustang) was standard with a 115 hp 2.8L V6 (from Ford of Europe) offered as an option; as a running change during 1986, the 2.8L engine was replaced by a 145hp 3.0L V6 (shared with the Ford Taurus/Mercury Sable). Initially intended as an option, the four-cylinder turbodiesel of the 1984 concept vehicle was dropped after prototype testing. For 1988, the 2.3L engine was discontinued, with the 3.0L V6 becoming the sole engine offering (with the Aerostar becoming the first minivan offering only V6 engines). For 1990, coinciding with the introduction of the E-4WD option, a 160 hp 4.0L V6 was introduced; the engine was paired with the all-wheel drive system and was an option on higher-trim rear-wheel drive vehicles.