Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Chassis | Engine(s) | Tyres | Points |
| --- | --- | --- | --- | --- |
| 1980.0 | Osella FA1 FA1B | Cosworth DFV 3.0 V8 | G | 0.0 |
| 1981.0 | Osella FA1B FA1C | Cosworth DFV 3.0 V8 | M | 0.0 |
| 1982.0 | Osella FA1C FA1D | Cosworth DFV 3.0 V8 | P | 3.0 |
| 1983.0 | Osella FA1D | Cosworth DFV 3.0 V8 | M | 0.0 |
| 1983.0 | Osella FA1E | Alfa Romeo 1260 3.0 V12 | M | 0.0 |
| 1984.0 | Osella FA1F | Alfa Romeo 890T 1.5 V8 (t/c) | P | 2.0 |
| 1984.0 | Osella FA1E | Alfa Romeo 1260 3.0 V12 | P | 2.0 |
| 1985.0 | Osella FA1F FA1G | Alfa Romeo 890T 1.5 V8 (t/c) | P | 0.0 |
| 1986.0 | Osella FA1G FA1F FA1H | Alfa Romeo 890T 1.5 V8 (t/c) | P | 0.0 |
| 1987.0 | Osella FA1I | Alfa Romeo 890T 1.5 V8 (t/c) | G | 0.0 |
| 1988.0 | Osella FA1I FA1L | Osella 890T 1.5 V8 (t/c) | G | 0.0 |
| 1989.0 | Osella FA1M | Cosworth DFR 3.5 V8 | P | 0.0 |
| 1990.0 | Osella FA1M-E | Cosworth DFR 3.5 V8 | P | 0.0 |
Question:
Which engine has more than 0 points and a year before 1984?
Answer:
Cosworth DFV 3.0 V8