09 LB Rear seat removal for better MPG

[Sodium Duck]

FWIW, most of what I've read says that the rings seat within the first few miles of driving.

And I'd be really skeptical of such a claim. In general, the rule of thumb on weight is something like 1MPG per 100lbs. The seats don't weigh enough. They were probably using some hypermiling techniques in addition to seat removal. Unless I saw data showing a constant 4MPG jump, I call shenanigans.

[regal]

Originally Posted by Sodium Duck

FWIW, most of what I've read says that the rings seat within the first few miles of driving.

And I'd be really skeptical of such a claim. In general, the rule of thumb on weight is something like 1MPG per 100lbs. The seats don't weigh enough. They were probably using some hypermiling techniques in addition to seat removal. Unless I saw data showing a constant 4MPG jump, I call shenanigans.

When I added a 80 lb subwoofer to my civic I lost 3 mph, I have a hilly commute.


As far as the rings, the old timers always said to do a lot of accelerations the first 1000 miles. I know ring composition is different now, but compression plays such an important role in efficiency that I can't see risking not following the tried and true methods.

I'd go as far as to say that the huge variance people report on Yaris MPG is compression differences, very few people actually break in engines the old way.