Finally put it to the floor!
Professional
Joined: Dec 2009
Posts: 185
Likes: 0
learns style
When I picked mine up the guy at the dealer told me there IS no break in period for the new HEMI, just drive it normally however you usually do and it'll adapt to your driving style. Dunno how it "adapts" but I never worried about break in and I never drove it anything but normally from day 1.
Veteran
Joined: Oct 2005
Posts: 461
Likes: 0
From: NW Arkansas
There's more to a new vehicle break-in than just the engine. Every mechanical part needs to be "seated" to it's mated part. This includes brakes, transmission, rear end.... Engines are broke in by heat cycles not the magic 500 mile mark. I've always heard to start the motor and immediately drive it like normal until it reaches full operating temperature. Then park it and let it cool down completely. Repeat several times.
Your new vehicle may only show 10 miles at delivery but the engine has been through many heat cycles by the time you get it.
Your new vehicle may only show 10 miles at delivery but the engine has been through many heat cycles by the time you get it.