I do not know anything about sidewinder, not saying it's bad. You shopping at a hobby shop i assume?

After run oil: Get some synthetic 2 stroke oil and call it a day. Way cheaper and will protect. I know with Byrons fuel, many guy's do not use aro. Keep your rig in a controlled temp enviroment and you should have zero issues....

Here's Byron's fuel....

http://www.amainhobbies.com/product_...Fuel-One-Quart

If your engine is new, go here and learn it!

http://www.rctech.net/forum/offroad-...eak-bible.html

Use this for tuning, Got questions, ASK!

http://www.rctech.net/forum/offroad-...ing-bible.html

The "idle 2 tanks" is old school and has been updated. Like i posted before, ask questions and know what and why your doing what your doing....