Toto auto jezdí na benzin.

Because toto has to match the gender, number, and case of auto.

• auto is neuter
• singular
• nominative here, because it is the subject

So the correct demonstrative is:

• masculine: ten
• feminine: ta
• neuter: to / toto

That is why you get toto auto = this car.

A very common informal alternative is tohle auto.

In Czech, many nouns ending in -o are neuter, and auto is one of them.

So you say:

• to auto
• to malé auto
• toto auto

Even though a car is not biologically male or female, grammatical gender in Czech is just a grammar category. It does not have to match real-world sex.

This is an important Czech distinction.

• jet / jede is usually for one trip, one movement, right now
• jezdit / jezdí is for repeated action, habitual action, or general ability/function

In this sentence, the meaning is not This car is going right now on gasoline. It is describing a general fact about how the car operates. So Czech uses jezdí.

Compare:

• Auto jede do Prahy. = The car is going to Prague.
• Auto jezdí na benzín. = The car runs on gasoline.

It means that the vehicle runs on or is powered by gasoline/petrol.

This is a very common Czech pattern:

• jezdit na benzín = run on gasoline
• jezdit na naftu = run on diesel
• jezdit na plyn = run on gas
• jezdit na elektřinu = run on electricity

So here jezdit is not just about physical movement; it can also describe the type of fuel a vehicle uses.

Because Czech uses the expression jezdit na + fuel/energy source.

So:

• na benzín
• na naftu
• na elektřinu

In English, you say run on gasoline. In Czech, the normal idiom is jezdit na benzín.

This is something you mostly learn as a fixed pattern rather than translating word-for-word.

After na in this expression, Czech uses the accusative.

So na benzín contains accusative benzín.

For this noun, that may not look very exciting, because benzín is masculine inanimate, and in the singular its nominative and accusative have the same form:

• nominative: benzín
• accusative: benzín

So the case is accusative, even though the word itself does not change.

In standard Czech spelling, it should be benzín with a long í.

So the standard sentence is:

Toto auto jezdí na benzín.

You may sometimes see benzin without diacritics in casual typing, search boxes, text messages, or learner materials that omit accents. But normal written Czech uses benzín.

Yes. That is very natural.

• toto auto = this car
• tohle auto = this car

Both are correct, but they feel a bit different:

• tohle auto is very common in everyday speech
• toto auto can sound a bit more neutral, careful, or written

So in conversation, many people would probably say:

Tohle auto jezdí na benzín.

Yes, Czech word order is flexible, but Toto auto jezdí na benzín is the most neutral order.

It follows a simple pattern:

• subject: Toto auto
• verb: jezdí
• other information: na benzín

You can change the order for emphasis, for example:

• Na benzín jezdí toto auto.
  This puts extra focus on the fuel.

But for a basic statement, the original order is the most natural.

Because Czech does not have articles like English.

So Czech does not normally use separate words for:

• a car
• the car

Instead, the meaning comes from context.

In this sentence, toto already makes the noun specific, so toto auto clearly means this car. No article is needed.

A rough English-friendly pronunciation is:

TOH-toh OW-toh YEZ-dee na BEN-zeen

A few useful notes:

• j is pronounced like English y
• z is a normal voiced z
• í is a long vowel, so jezdí and benzín end with a long ee
• stress in Czech usually falls on the first syllable of each word

So:

• TO-to
• AU-to
• JEZ-dí
• NA
• BEN-zín