Fuel for Cox engines - RC Groups
Thread Tools
Aug 06, 2006, 08:25 PM
Registered User

Fuel for Cox engines


I got out my gas (Cox .049, & .020 reed valve and the .020 tee dee) free flight airplanes after not flying them for a while. (see attachments). They started great a while back now I've had a bit of trouble getting them started. Yes, they still run, but I was wondering if the nitro fuel can go bad? Does nitro evaporate? What's the shelf life? My battery shows 1.5 volts (Cox black plastic battery holder-2 D batteries) and the glow plugs light up OK. Is there a better battery system? I've been using 20% nitro but this disscussion says 35% nitro.



P.S. The photos have a Deisel DC Dart installed. I had trouble running it for now so I'm using a Cox .020 Tee Dee until the deisel is learned.
Sign up now
to remove ads between posts
Aug 23, 2006, 05:30 PM
OCD: Old, Cranky and Disgusted
challenger_i's Avatar
WOW! Old post and no answers!

Nitro fuel will attract water like a sponge. I like replacing any fuel that has been opened about every 3 to 4 months, sooner if the humidity has been up.
Aug 24, 2006, 03:57 PM
feel no remorse
youth must fly's Avatar
wow the model looks sweet nice gentle flyer

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Where to buy Cox fuel for my Norvel .061 on my 100" Windrifter thermal glider? aviator1zz Fuel Plane Talk 4 May 02, 2006 10:20 AM
Glo-Starter for Cox engines indoorff 1/2A Planes 4 Sep 27, 2005 11:38 AM
Fuel issues for COX 0.049 neniwein 1/2A Planes 9 Mar 06, 2005 06:33 AM
Fuel for fouur stroke engines jmf2001 Engines 10 Mar 16, 2004 09:53 AM