Does Marvel Mystery Oil really help to un seize an engine?

My 2004 Honda Civic Ex seized on me. Thanks to an oil leak that made it run on no oil. I have read other forums on different websites stating that Marvel Mystery Oil un seizes an engine. I wanna try cheaper stuff like MMO or other stuff before I make the decision to rebuilt the engine or even buy a new one. This car in the year I've had it. It's been a mess. I've had 3 times it's left me stranded. I paid 5,000 for it cash last April and so far I've put almost 3 thousand in the engine. From radiator, water pump, timing belt, hoses, and batteries… I need some advice on what to do. It's my first and only car and as a 22 year old I don't know what to do.

Canadian 6th gen. Honda civic Si?

I was told that the 6th gen. Only comes with sohc d16 vtec engine. I was under the impression that my car was not vtec. Is this possible?

1998 Honda Civic EK B18C4 high idle when start up?

I recently purchased a Honda Civic with B18C4 engine swapped in and everytime I start it up, the rpm needle shoots to 2k for about 5-8 seconds then goes back down 1k but the engine misfires. What can I do to fix this?

Is replacing a radiator expensive?

My neighbor is selling his 2003 Honda Civic because it has a broken radiator. He already has another car. He says he can only drive it a few miles before it overheats. I told him I know a mechanic who might be able to fix it. He said he would just give me the car if I can fix the radiator.

Issue with my car Honda civic?

When I drive my car after distance it suddenly stop. I google it they say some it might be

Ignition switch
Ignition switch

Do you know what the reason of this?

I have changed fuel pump, also new battery.

Added (1). Forget to mention it is 2002 Vti

Trunk light won't come on?

98 Honda Civic LX

Trunk light won't come on. I already tested for voltage continuity, and I tried changing the bulb.

How much will I pay for a 2015 Honda Civic EX?

How much will I pay for a 2015 Honda Civic EX?

Added (1). How much will I have to pay exactly? Been going on websites and there's MRSP and dealers invoice. Some says *All sale prices are plus taxes, tags, freight/destination, and $599 processing fee. Some vehicles may have dealer add-on accessories. So what is the actual price that i will have to pay.

Added (2). And every dealership has a different price.

Added (3). This one says $17,892: http://www.hondaoftysonscorner.com/new/Honda/2015-Honda-Civic-dd6936a40a0a0065696881995462b81e.htm