60 series detroit 12.7 cold start volvo vnl 770

here are 2 sister trucks with 2 different series of 12.7 detroit 60 series motors at cold start. 20f

[@annasinigur7458]

What a nice video. I learned so much

[@MrVal916]

Now u know

[@PFSOutdoors]

I like yours! Reminds me of an old tractor chugging along

[@MrVal916]

@@TEXASNATEBOYZ 1999 60 series 12.7 bk model

[@timr1749]

Bk has a higher compression