[Tires question?]

I saw this tire comparison on the yahoo toyota-camper site

195/75R14 vs. 185R14

Anyone familiar with this or is this just wishful thinking and I need to get the 185R 14's?

[Propane Refrigerator question?]

Please excuse my ignorance but I'm new to the RV world and I have an 84 Coachmen with a refrigerator that can switch from electric to propane. I haven't used the propane option because I don't have a manual and quite frankly I don't want to blow myself up.

My question is do I need to just switch the refrigerator to propane and open the propane tank valve or do I have to light a pilot light somewhere?

Also, is there safe way to test for any propane leaks? Possibly a tester/gauge?

[Going solar?]

I have an 84 toyota coachmen and I want to go solar but I have no idea where to start and what to buy. Can anyone please make this as simple as possible because I'm starting to get a headache from information overload.

I would like to have enough power to run a tv, interior lights, small microwave and fridge if possible. Someone please help!!!!