SAE 5W-30 is what Honda recommends and that is what you should use conventional or synthetic.
12V
no it will not fit... cuz the holes where the bolt goes does not match....
134a
i have a 92 Honda civic si... it goes like 102... fully stock..
Check you TPS.
no
R134a
When my 2000 Civic 2 door EX is filled it never goes above 10.5 (which is when the light has been on for a while). I would assume that it holds about 10 gallons of gas at a time with a little extra.
It depends, a 2006 to 20011 civic si goes about 135 mph or so, not sure about the regular civic though, I think about 120 mph or so.
One can find the resale price of a 1999 Honda Civic when one goes to the shop of Auto Trader or any dealers of used cars. A 1999 Honda Civic is about $3000.
4.2 Quarts. But 4 is fine.
The car was originally supplied from the manufacturer with r12.