1990 Volvo 740 Q&A

1990 Volvo 740 Question: poor gas mileage

So I have an 1987 Volvo 740 Turbo. I get Horible gas mileage. It is an older car and also is a wagon but I got 225 miles from a full tank. which is a 13 gallon tank. Is this normal.. or could there be something wrong? I dont know much about cars so I feel pretty clueless... -
Answer 1
To get better gas MPG there's a few things you could do first check your tire psi, change the oil for a lower grade one, change your air filter, fuel filter and tune up is needed when you car is tuned properly it will waste less gas, you can also use a fuel treatment -
Answer 2
Do you have a check engine light on? And how does your engine run? Does it feel like it is running at full power or does it feel sluggish? -
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...so if I'm running the engine at about 3200 to 3500 RPM for that long is that a problem besides poor gas mileage? Is there any obvious/inexpensive fix for this problem?