I am somewhat familiar to what can happen to engine oil and engines internal parts that must idle for long periods of time. For example, police cars, taxi's, and ambulances. IMO, these 3 types of vehicles must idle for very long periods of time due to their nature of work. A police car must idle if at a stakeout, a road closure, a blockade, an accident, etc. A taxi must idle when waiting on a fare, in heavily populated US cities, esp. at airports. An ambulance must idle at a crime scene, an accident, any hospital, etc. We all know how this plays a major part in fuel dilution in the oil and how it then can effect the internal moving parts of the engine. Do police, taxi, and ambulance garages take this into consideration when choosing a motor oil (which I'm sure they do) or, do they take steps to change the oil sooner? Do they ever consider pouring in additives to prolong the oils life?
I would like to hear from those that have to maintain these types of vehicles. How does your garage deal with the excessive idle situation in these engines. Are there a lot of UOA's performed? Is there a special additive you add to prolong the oils life? Do you do shorter than severe OCI's? What effects do you find on the oil AND the engine from excessive idling?
I would like to hear from those that have to maintain these types of vehicles. How does your garage deal with the excessive idle situation in these engines. Are there a lot of UOA's performed? Is there a special additive you add to prolong the oils life? Do you do shorter than severe OCI's? What effects do you find on the oil AND the engine from excessive idling?