Sem gasolina, não dá para continuar a viagem pela estrada.

In this sentence, não dá para is an impersonal expression meaning it’s not possible to, you can’t, or there’s no way to.

So:

• não dá para continuar... = it’s not possible to continue...

This use of dar is very common in Brazilian Portuguese. It does not literally mean to give here.

Some similar examples:

• Não dá para entrar. = You can’t go in.
• Dá para ver daqui. = You can see it from here.
• Não dá para esperar mais. = It’s not possible to wait any longer.

Both are possible, but não dá para sounds more natural and conversational in everyday Brazilian Portuguese.

Compare:

• Não dá para continuar a viagem pela estrada. = more natural, spoken
• Não é possível continuar a viagem pela estrada. = more formal, more neutral

So não dá para is something learners will hear very often in real speech.

Sem gasolina means without gasoline / without fuel. It sets up the condition first:

• Sem gasolina = Without gas
• não dá para continuar... = you can’t continue...

Portuguese often puts this kind of phrase at the beginning for emphasis or clarity.

You could also say:

• Não dá para continuar a viagem pela estrada sem gasolina.

That has basically the same meaning. Starting with Sem gasolina just highlights the problem immediately.

Because sem often takes a noun without an article when speaking generally.

• sem gasolina = without gas
• sem dinheiro = without money
• sem tempo = without time

If you said sem a gasolina, it would usually sound much more specific, as if referring to a particular gasoline already identified in context, which is not the normal idea here.

So sem gasolina is the natural choice.

Because in Portuguese, viagem usually needs an article in this structure.

• continuar a viagem = continue the trip/journey

Unlike English, Portuguese often uses articles where English does not. Even when English says continue the trip, continue our trip, or just keep going, Portuguese commonly says:

• continuar a viagem
• prosseguir com a viagem

Saying continuar viagem can exist in some contexts, but continuar a viagem is the more standard and expected phrasing here.

Yes, and the meaning would be very similar.

• Não dá para continuar a viagem pela estrada.
• Não dá para continuar viajando pela estrada.

The difference is small:

• continuar a viagem focuses on the trip as a whole
• continuar viajando focuses more on the action of traveling

Both are natural, but the version with a viagem sounds a little more like talking about the journey itself as a planned thing.

Pela estrada usually means along the road, via the road, or on the road depending on context.

It is formed from:

• por + a estrada = pela estrada

This contraction is very common:

• por + o = pelo
• por + a = pela
• por + os = pelos
• por + as = pelas

In this sentence, pela estrada suggests continuing the trip by way of the road or along the road.

Both can be possible in Portuguese, but they are not exactly the same.

• na estrada = on the road, emphasizing location
• pela estrada = along/via the road, emphasizing the route or path taken

So here, pela estrada fits well because the sentence is about continuing the trip by road.

Compare:

• Estamos na estrada. = We are on the road.
• Seguimos pela estrada. = We continued along the road.

There is no explicit subject. This is an impersonal construction.

Portuguese often uses impersonal expressions where English might use:

• you can’t
• it’s not possible
• one can’t
• we can’t depending on context

So não dá para continuar does not directly say who cannot continue. The context tells you:

• maybe we
• maybe they
• maybe someone in general

That vagueness is normal and natural.

Yes, in real-life use it can imply either one depending on context.

Literally, sem gasolina means without gasoline, which often suggests out of gas. But speakers may also use it more loosely to mean without enough gas to keep going.

So the exact nuance depends on the situation:

• completely empty tank
• not enough fuel to continue

Either way, the core idea is that fuel shortage makes continuing impossible.

Not exactly.

• rua = street in a town or city
• estrada = road, often outside urban areas, more general
• rodovia = highway, usually more formal/specific

So pela estrada sounds like traveling along a road, probably outside the city. If you used rua, the image would be different. If you used rodovia, it would sound more specifically like a highway.

Yes.

• Sem combustível, não dá para continuar a viagem pela estrada.

That means Without fuel, it’s not possible to continue the trip on/along the road.

Difference:

• gasolina = specifically gasoline
• combustível = fuel in general

If the vehicle is clearly gasoline-powered, gasolina is more specific. Combustível is broader.

A rough pronunciation guide is:

Sehn gah-zoh-LEE-nah, nowng dah pah-rah kohn-chee-noo-AHR ah vee-AH-zhehm PEH-lah es-TRAH-dah.

A few helpful notes:

• sem has a nasal vowel, so it is not a plain English sem
• não is also nasal
• viagem ends with a soft zh sound, like the s in measure
• dá is stressed
• estrada is stressed on tra

A more natural spoken rhythm might reduce some vowels, especially in fast Brazilian speech.