Punctuating Sentences
With five gallons of gas.
This is not a complete sentence.
Once you write a complete sentence, please repost and we'll help you with punctuation, if necessary.
=)
With five gallons of gas the car will run.
Now it's a complete sentence -- and you need a comma after "gas" -- OK?
=)
With five gallons of gas the car will go far.
http://grammar.ccc.commnet.edu/grammar/commas.htm
See #3 for this particular comma use.
=)