Ask Jay

Jay Leno answers your questions about anything automotive.

Videos

Ask Jay: Downforce, Gas & Licensing

Jay pulls out the Duesenberg SJ to talk about modern gas and... View »

Ask Jay: Ferraris, Rust, Safety & Tools

Ever wonder why Jay doesn't own a Ferrari? Or what kind of... View »

Ask Jay: Vapor Locking & Future Classics

Jay answers the questions you asked! Ever wonder whether you have to... View »

Ask Jay: Steam Engines, Trucks and Corvettes

Jay answers the questions you asked! Ever wonder about the viability of... View »

Ask Jay: The Lowdown on Turbocharging, Volumetric Efficiency and More...

Jay answers the questions you asked! In this first installment, Jay and... View »

Ask Jay

Got a question about stuff that rolls, explodes or makes noise? Jay... View »

QA March 12, 2007

Why build a steam engine and what to do with an old... View »

Jay Leno's Garage merchandise The Tonight Show

Collections

additional posts

Super Cars
Super Cars

Quite simply, the finest, fastest and fiercest cars on the road, from both today and yesterday. More »

Skinned Knuckles
Skinned Knuckles

Real life stories that proves sometimes working on cars is a labor of love--and pain. More »

Steam Cars
Steam Cars

Developed around a century earlier than internal combustion engines, these heavyweights held all the early land speed records. More »