Toronado — E-body (1986–1992)

shared E-body code; cited from the Buick Riviera: gnttype.org's 1987 Buick VIN table prints LG3 (VIN code 3, 3.8L V6 SFI) for the Riviera Luxury, and Wikipedia's Buick V6 article names the Riviera's 1987 engine LG3; for the Toronado that article lists it only in a block shared by two engine codes, headed by LG2 and LG3, so no code is claimed for 1986; no Oldsmobile-specific source prints the code; a Wikipedia slash form is not a per-year reading

Wikipedia's Toronado article says the LN3 V6 arrived for 1988 and its Buick V6 article lists the Toronado and the Troféo under LN3 for 1988–1990 (one source); matched to the first year by the Toronado article and to the span by the engine article; description follows the Toronado article; the merged Buick Riviera doc reads this code with different fuel-system wording (Buick Riviera reads it as multiport fuel injection)

Wikipedia's Buick V6 article lists the Toronado and the Troféo under L27 for 1991–1992; the Toronado article says 1991 models had more horsepower but names no code; matched to the car by the engine article's list; description follows the Toronado article; the merged Buick Riviera doc reads this code with different fuel-system wording (Buick Riviera reads it as sequential fuel injection)

Wikipedia's Toronado article calls FE3 the corporate package of the mid-1987 Troféo, says the 1988 Toronado and Troféo included the FE3 suspension, and says the 1992 cars made the formerly optional FE3 standard; no year between is dated for it, so 1989–1991 is not claimed