In the case of my 65 Corvair, it was gas, grass and ummm oil LOL....

Every time I'd speed shift it the fan belt would fly off and it would start poor smoke through the vents. One time I finally got this pretty gal to take a ride in it and of course I had to speed shift it. Yep, It looked like a Cheeh and Chong cruiser it was smoking so bad as she jumped out when I stopped. Never got her back in it.....

Man, it was a fun car to drive tho.....