That's what I thought. Anyhow I put in 10 bucks unleaded as close to empty as I cared to get as I just got the car and err'thing seemed fine except I noticed a little rougher idle at stops without clutch engaged and check engine light came on once. Also the battery light flashed once when stopped at a light. Drove all of it out and just put in 10 bucks of 89 to see how it handles that...