MovieChat Forums > Back to the Future Part III (1990) Discussion > Why didn't Doc use the secondary car to ...

Why didn't Doc use the secondary car to send Marty back to the future?


The thing that always bothered me about this movie was that Doc had two Deloreans with him in 1885: one that he came back in and one that Marty came back to save him. The one Marty came in had a simple fuel tank rupture but they didn't have any gas. Yet the pristine condition one is still stored. Why didn't Doc simply stored the one without gas (something that was impossible to get at the time) vs using the pristine shape one?

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That's what the FAQ's are there for.

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Þ'by there was no fuel. Doc Brown repaired the fuel tank but he had no fuel to put in the tank. When he put the Delorean in storage in the cave he drained all fluids from the car which is standard procedure if you are putting a vehicle in long term storage.

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You mean to say Doc wasn't smart enough to make fresh fuel?

Marty

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The 'stored' car wasn't pristine. According to the letter, 1885 Doc explains that 'the lightning bolt shorted out the time circuit control microchip' and that the letter contained a schematic diagram allowing 1955 Doc to build a replacement unit with 1955 components. Then we actually see the alterations Doc had to make to it including that huge contraption on the hood?

In short the car in the cave was busted too!

We have to show the world that not all of us are like him: Henning von Tresckow.

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If Doc disturbed the car he hid in 1885 then how is Marty supposed to find it in 1955?

Plus, Doc would have drained the gas anyway seeing as how gasoline/petrol has a 3 year expiration date before it turns to gel and ruins the engine.

And no, Doc would not risk unearthing the time machine he hid, for one reason being it could screw up Marty finding it in 55, and that even if Doc knew how to make high octane gasoline, he wouldn't have the materials to make it... Or at least not be able to create them within the few days he had left before he's shot.

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Plus, it wasn't the gas tank that was the problem, it was the fuel injection manifold that blew off

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The manifold blew off because they were trying to run the car on alcohol from the saloon (bartender says its the strongest stuff they got) because the car leaked out all its gas

were dans la maison

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Because that would create a major paradox. The original wouldn't be available for Marty to take back to the past.

And your fix around this, storing the beat up one and using the pristine one to go back to the future, would create an even further paradox! Marty has to create a time loop, of the Delorean getting stored and then using it to come back and save Doc, right. So if the Delorean is stored for 70 years, it's beat up. If it's stored for another 70 years, it really won't work at all. So, by making the beat up one which is already in bad shape stored further, it'll be in even worse shape when it ends up in 1955 to the point it probably won't even be able to go back to 1885, preventing Marty who switched them from actually having a pristine condition to go back with Doc at all. So they actually HAVE to use the beat up one with the gasline destroyed, or he will change the circumstances of how he got there and make the situation worse.


~NW~

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The 'stored' car wasn't pristine. According to the letter 1885 Doc explains that 'the lightning bolt shorted out the time circuit control microchip' and the letter contained a schematic diagram allowing 1955 Doc to build a replacement unit with 1955 components. Then we actually see the alterations Doc had to make to it including that huge contraption on the hood?

What is it people aren't getting about this?

We have to show the world that not all of us are like him: Henning von Tresckow.

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