How Long Will A Canister Of MSR IsoPro Last?
In general one canister of MSR IsoPro fuel will be sufficient to boil water for two people over four days in summer.  NOTE: Wind, Low Temperatures And Longer Cooking Times Will Increase Fuel Consumption.

Other Common White Gas Is Sold Under The Brand Names: Coleman, Crown and CampLite.

Unleaded Automotive Fuel Notice: May Be Used In MSR Stove.  However, Fuel Additives will lead to rapid clogging, making frequent fuel line cleanings necessary. Do NOT Use Leaded Fuels!

How Much Fuel Should I Bring?
MSR Recommends 4 oz. /114 ml Of Liquid Fuel Per Person Per Day For Cooking Or 8 oz. (237 ml) Of Liquid Fuel Per Person Per Day For Melting Snow And Cooking.  An Extremely Cold Trip, Like Skiing In Antarctica, May Require As Much As 15 oz./444 ml Of Liquid Fuel Per Person Per Day.

Storing Fuel
Fuel Degrades When It Contacts Air.  Store Fuel In A Quality Airtight Container, Such As An MSR Fuel Bottle.

Fuel Bottle Pressure
MSR stoves burn best when the fuel bottle is pressurized to 15-25 psi (1034-1724mb). That's equivalent to about 20 pump strokes for a full 22-ounce MSR fuel bottle. As the fuel burns, the air space in bottle grows larger, and pressure decreases. You'll have to pump more to maintain the same pressure.