Kiddo's Driver
Pattern Altitude
- Joined
- Oct 5, 2013
- Messages
- 1,502
- Location
- Somewhere in the Southeast
- Display Name
Display name:
Jim
Remember, you have the option to blend with 100LL if you want to pull the octane up. The problem with pump gas is the variability of the Reid Vapor Pressure (RVP). Winter fuel has a high RVP to aide in vaporization of the fuel in cold weather. (It also happens that what they add to winter fuel is also cheaper than the rest of the components. Bonus for the refineries.) This is really only a problem when you have winter fuel left in the tanks and you try to fly on a hot day. The fuel pump at the engine is attached to a skinny fuel line that runs to the tank. The low pressure on the suction of the pump, aggravated by the small fuel line, causes vapor lock. Turning on the electric fuel pump at the engine only makes this worse. Moving the electric fuel pump to as close to the fuel tank as you can get it will fix the issue.
For reference, take a look at the Peterson STC for Piper Cherokees. It costs several thousand dollars instead of several hundred. It includes two fuel pumps, switch(es), and wiring in addition to the typical fuel tank filler hole stickers.
For reference, take a look at the Peterson STC for Piper Cherokees. It costs several thousand dollars instead of several hundred. It includes two fuel pumps, switch(es), and wiring in addition to the typical fuel tank filler hole stickers.