I havent been driving my car much lately. When I do a cold start (Florida cold) the engine cranks well but there is a little effort to get it started. The last time I drove it it it wouldn't start at all after a 3 mile ride down the street - cranked it until battery went dead. I left the car for a few hours charged the battery (a new optimus) and it started up with several cranks. Definitely smell fuel when cranking.