99% highway (cruise at 63 mph), primarily flatland driving, either of my 2.2's average mid forties, same driving pattern the 2.5 na is high thirties. All are stock automatics.

Jim

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2005 C240 4matic wagon (daily driver)
87 190D - 225K (on loan)
85 190D - 312K (on loan)
2011 Subaru Legacy AWD (Wife's)