During brutal winter freezes, an old tractor was frequently called upon to clear farm lanes and haul feed to stranded cattle. Lacking pre-heaters, starting a freezing engine often required heating the intake manifold or building a small fire under the oil pan. Once running, its heavy iron weight pushed through deep snowdrifts with relentless and determined persistence. https://altcourt.org/blog/80211/32558/safety-guide-operating-an-old-tractor-without-rollover-protectio