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If the vehicle is lifted up on the hoist and put in drive, left running with slight acceleration e.g.,60 mph cause any problems to occur in the vehicle? It is left running for testing purposes. The vehicle will be running for appx. 15 hrs.

Not as long as there is someone there to monitor it.
It would be better to drive a vehicle for testing purposes though.

Today I was on my way home from work. I went up a steep hill then made my way up another steep hill. When I stopped at the stop sign at the bottom of the hills I noticed smoke coming from underneath the hood. I headed on home and when I got home I popped the hood and antifreeze was everywhere around the reservoir. The day before I had put antifreeze in and may have overfilled it. I took it straight to a local Midas and had it checked. They hooked a pressure test up to it and they said it was showing a tiny leak. They hoisted the car up and used a light and looked around and noticed a small leak coming from the timing belt cover. They said it was just a small seepage nothing to worry about. They then put the car back down and let it run for about 20 minutes with the heater running. The car didn’t leak and it ran fine. I’m worried about a blown head gasket but the car isn’t showing any signs of that. I have checked the oil many times but it isn’t milky or anything. The car has great power still and isn’t holding back at all. There’s no steam coming from the tailpipe but there’s water dripping from the tailpipe but it is clear as can be. The mechanic said that’s normal due to condensation. The water pump is less than two years old. I left the mechanic and drove it up more steep hills. I checked it afterwards and had no leaks whatsoever. I also started the car and let it run for a few seconds and took the radiator cap off to check for air bubbles. None. The mechanic said in his professional opinion the head gasket is fine but you never know. I lose no power going up hills I do get a bit of a spark knock though. The spark plugs and wires are also new. I’m not sure what could have caused the antifreeze to go everywhere that one time. I have two ideas. 1. I overfilled the reservoir and when the car heated up it caused the reservoir to overflow or 2. air was trapped in the cooling system and it pushed the antifreeze out of the reservoir. Any help would be great.
Sorry the car is a 2000 Ford Taurus SE

it would appear to me you’re being hyper.
i would also agree with your statement that you just overfilled the coolant container.
there is usually a mark on that container that shows and tells you not to fill past that mark.
head gasket that is blown will usually do one of two things. the anti-freeze will get into a cylinder and then leak into the oil, or will leak out the side of the head where you will be able to see it.
you’ve done the right thing by having a qualified mechanic check it for you.
stop worrying. just keep an eye on it for a couple of weeks.
just because it looks a little low doesn’t mean you NEED to fill it up.
good luck to ya
there is also a product that you can add to the radiator to stop any small leaks, it’s called STOP LEAK, it a combination of fluid and pellets, the fluid act immediately on any leaks and the pellets over time melt to become fluid for future leaks. i’ve used it a few times over the years and found it to be quite effective.
good luck to ya.
make sure that the radiator cap you put back on is on tightly. that cap is pressure sensitive and actually allows the water to go over the boiling point, but because the cap i pressurized the water doesn’t boil over, when the cap is on correctly.

Your place called me saying that my license plate had arrived at the dealership, which made me decide that this would probably be the best time to e-mail you.

After driving the car a couple of days, and putting it up on a hoist, I found some issues I’d like to take care of ASAP, where I could possibly drop off my car if it is a multi-day job when I pick up the license plate. Some major, some minor.

Odometer and Trip Meter Both Do Not Work (Big Problem. Has not moved from original mileage, which makes me question how long that hasn’t been working prior to being sold a car with said mileage.

Battery was never replaced, and is still the green interstate battery that was installed in the vehicle when 2 jump packs were needed to start it.

When Driving at Night, the Gauges/Radio/CD Player Lights dim when Pressing Window Switch. Possibly due to a failing alternator.

Cranking Noise When You Turn The Steering Wheel, most likely a power steering problem. We uncapped the power steering fluid compartment, and it appears green, like anti-freeze/coolant, when power steering fluid is not green.

There is a rattling Noise When Going Over bumps, even small ones, or small potholes. Sounds like some sort of metal. Rattling may be from Alternator’s Heat Shield being loose.

Passenger Side Automatic Window Switch Does Not Work. It can roll up, but can not be rolled down.

Passenger Side Automatic Switches Are not seated properly in the passenger side door panel.

Bottom of Driver and Passenger Side Door Panels Are Loose (That is possibly an Interior issue, though.)

Muffler/Exhaust is not seated properly and is tilted sideways. Muffler/Exhaust May Have a Hole In it. This is what I was told by an in town mechanic, since I do not have a hoist, they used their own.

http://www.guardian-warranty.com/consumers.html
Sorry about the beginning part. I copied and pasted an email
I just bought this car Monday Evening.

No you got to pay for everything. Because what they going to say that you abuse the cars! good luck

….The car gains 2.35 x 10^4 J of gravitational potential energy during the process. What is the efficiency of the hoist?

A. 7.00%
B. 17.5%
C. 25.0%
D. 34.9%

An Internal combustion engine has an efficiency of 20.0%. This engine is used to deliver 6.00 x 10^4 J of work to the rest of the drive train. What is the total energy input?
A. 1.20 x 10^3 J
B. 4.80 x 10^3 J
C. 7.20 x 10^4 J
D. 3.00 x 10^5 J

List the following engine types in order of increasing efficiency
Daimler engine
Newcomen steam engine
Savery engine
Otto engine
Watt steam engine

(2.35*10^4)/(6.73*10^4) *100 = 34.9% Answer D is correct

100/20*(6.00*10^4) = 300,000J = 3*10^5J

Last part of your question:
Sorry you will have to look these up. This is something that does not require any calculation, and is merely reading up references, which you can do yourself