So i got the car for free it has 130k what i ca. See is that the belts are shot and very loose im gonna do a full fluid exchange on everything this week and i was told to take the plugs out and put a certain kind of oil in the chambers and let it sit overnight??? Anyone else have any input as to what i should do please feel free to share. The cars been sitting for 10 years but it still runs smoothly

 

You've got some work ahead of you.
The best Weapon is "knowledge"..so it's best that you prepare yourself and not just Rip into it without knowing what you are doing.
THIS Link is a good start: Removing An RX-7 From Storage, Dealing With Improper Storage

 

I did a lot of work to mine after sitting for 3 years . I need to replace the rad and all of the rubber everywhere becouse I got little vacuumed leaks everywhere .
Just flush everything 2 TIMES AT LEAST ! Everything was clogged on mine. And all the rubber is starting to crack.

Just expect to spend 2 grand getting it running right and handling with out problems left and right.

 

Sound likes you have some work to do. The oil you are asking about is Marvel Mystery Oil it is used when you have carbon lock problems. Some people use ATF but is corrosive to the rubber seals in the engine.

Good Luck getting her up and running.

 

If it runs smoothly as you say do not put oil in the engine. Change the belts and drive.

 

Thanks for the replies, i bought all new belts after work today and ordered spark plugs. Bought oil trans fluid diff fluid and some ps fluid and brake fluid yesterday ordering a pulley set online right now getting tires for free crom my buddy sometime this week Nd now im decieding if i should get cheap rotors and pads for now and buying drilled and slotted later... After i do all this i feel it should be way better. Gonna work on it at my shop monday since its my day off.