Zdravstvuyte from the USA

[awaken]

Nope. Vodka, bears, russkii teplovoz 2TE10M with fucking huge plume!

3TE10U locomotive blows the shit out

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And this one even better. Very rare and old locomotive (produced in 1962 - 1976), still in use in Moldova.

2TE10L - Old workhorse

and where 's bears? THE BEARS are coming from the exgaust of this badass machines!

p.s. in Russian train engieer's slang, "bear" means a huge plume coming from exgaust, like on the mentioned video clips.
It happens when the engineer advances notches too fast, or engine is overstressed, or bad turbine bearings leaking oil into tjhe exgaust. Sometimes oil ignites and we can see sort of "volcano eruption" with smoke and even flame. TE10 series machines with 2-stroke engine are especially infamous for this oil-fed fire, 'cause most of them are old, and oil leaks are very common failure.