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 | Team | Chassis | Engine | Rank | Points |
| --- | --- | --- | --- | --- | --- |
| 1982.0 | Wysard Racing | March 82C | Ford Cosworth DFX | NC | 0.0 |
| 1983.0 | Wysard Racing | March 82C | Ford Cosworth DFX | 27th | 4.0 |
| 1983.0 | Wysard Racing | March 83C | Ford Cosworth DFX | 27th | 4.0 |
| 1983.0 | Provimi Racing | March 82/83C | Ford Cosworth DFX | 27th | 4.0 |
| 1984.0 | Provimi Racing | March 84C | Ford Cosworth DFX | 19th | 26.0 |
| 1985.0 | Tom Hess Racing | Lola T900 | Ford Cosworth DFX | 40th | 1.0 |
| 1986.0 | Team Menard | March 86C | Ford Cosworth DFX | 23rd | 11.0 |
| 1986.0 | Curb Motorsports | March 86C | Ford Cosworth DFX | 23rd | 11.0 |
| 1987.0 | Pace Racing | March 87C | Buick V6 (t/c) | 15th | 27.0 |
| 1987.0 | Raynor Motorsports | Lola T87/00 | Ford Cosworth DFX | 15th | 27.0 |
| 1988.0 | Raynor Motorsports | Lola T88/00 | Ford Cosworth DFX | 9th | 53.0 |
| 1989.0 | Raynor Motorsports | Lola T89/00 | Judd AV | 12th | 25.0 |
Question:
What is the Engine used before 1983?
Answer:
Ford Cosworth DFX