I bought my Bonneville in 1997 with 70,000 miles. It now has 254,000 miles and it still has the original engine and transmission. Neither has been overhauled. It uses no oil and consistently gets 28 miles to the gallon. It has probably been the best car I have ever owned. It is safe,comfortable, durable, and quite economical to own and operate. I will probably keep it until it stops running and then replace it with another GM automobile with the 3.8 liter engine. This engine is powerful,smooth, and stingy with gas.
Engine performance, 28 mpg, and overall quality, and safety
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