Fuel / Intake

Some Polaris Ranger Crews, and the 2019 Crew, in particular, are pretty cold blooded. Now I’m not saying they’re as bad as the Honda Pioneer, but if you don’t use the right fuel in your Polaris Ranger Crew, it could be a bit fussy when starting in cold temperatures. If you take care of your bike, it should do fine in the cold. We’ve seen riders encounter zero starting problems year after year, season after season, in subzero temperatures. We’ve also seen rigs struggle to start in the mid-30s until the battery dang near dies. Regardless, hard starting is torture to these engines, so be careful if you send it to a Polaris tech, as they’ll likely just change the ECU or something which will create more engine and starter damage that you’ll be stuck with. More likely than a bunk engine or starter, the fuel you use can make it hard to start in mid to low temperatures. It is the ECU of the Polaris Ranger that takes ambient temps and recalculates fuel and spark for cold starts. But in a lot of cases, the Ranger Crew may struggle to start when the ambient temps are low.


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The fact of the matter is, these machines just do not like 91 non-ethanol fuel when it's even somewhat cold outside. If you have a Polaris Ranger Crew, we at Everything Polaris Ranger suggest running 87 octane fuel in your Pro Star engine, provided that it’s not turboed. E85 is usually higher octane, but it starts poorly in the cold without at least a little hot air to get it going. There is no advantage to running 91 or premium fuels, in fact, they can actually be detrimental. This is how it has been since 2013, so if your Crew is after that year, try to run 87 non-ethanol fuel. Besides, many Crews, RZRs and other Rangers have stickers by the gas cap saying min 87, not min 91. A friend of the site told us he would have sworn he had a fuel pressure issue. Turns out they just don’t start correctly on 91, so run 87.

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