Oldsmobile Eighty-Eight/Regency/LSS MPG and Fuel Economy

Oldsmobile have been manufacturing models of Eighty-Eight/Regency/LSS for 1 year, with the latest vehicle in 1998 having a combined MPG of 21.

The estimated fuel cost for the 1998 Oldsmobile Eighty-Eight/Regency/LSS is $3,000 per year.

Government regulators have estimated that value based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.

💵 Compared to an average vehicle over 5 years, you will spend $3,500 more on fuel driving a 1998 Oldsmobile Eighty-Eight/Regency/LSS.

🛢 The Oldsmobile Eighty-Eight/Regency/LSS will consume roughly 14 barrels of petroleum per year, using the standard estimate of 15,000 miles per year.

💨 For every mile driven, the Oldsmobile Eighty-Eight/Regency/LSS will emit -1 grams of CO2, which is about -15,000 grams of CO2 per year.

🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 1 tree would be needed to offset emissions from the Oldsmobile Eighty-Eight/Regency/LSS.

The table below is a complete list of the 1 Oldsmobile Eighty-Eight/Regency/LSS fuel efficiency specifications we have data for.

Click any vehicle link to see a more detailed breakdown of the car, miles per gallon, emissions, and more.

VehicleCombined MPGFuel Cost
1998 Oldsmobile Eighty-Eight/Regency/LSS21$3,000

Link To or Reference This Page

If you use this page in your research, please reference MPG Buddy as the source.

  • "Oldsmobile Eighty-Eight/Regency/LSS MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/oldsmobile/eighty-eight-regency-lss.

  • "Oldsmobile Eighty-Eight/Regency/LSS MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/oldsmobile/eighty-eight-regency-lss. Accessed January 3, 2026.

  • Oldsmobile Eighty-Eight/Regency/LSS MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/oldsmobile/eighty-eight-regency-lss.