| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| tungs10 | "I am familiar with Mike Allen's evaluations. He admits that they are not "scientific". About the closest thing to a "scientific" evaluation of veh..." | Read more » | over 10 years ago | |||
| mathew | "Popular Mechanics does some good consistent testing on gas mileage improvement machines. I'd suggest checking it out. " | Read more » | over 10 years ago |