1.9 Diesel Pessima variable

uhh idk where to put here but i will just do update​

function​

- removed rolling coal ecu, replaced with filter and particulate slider
- removed paints and edited thumbnails
- improved engine power
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tired of ai stuck in first gear? well, you should get this update
function
- ai doesn't get stuck in first gear while driving diesel pessima

that was basically it
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