Why cant i find diesel without biodiesel in it?

Would it harm the engine if you only put in 3 liters of oil in the car? How often should the engine oil level checked on a boat? Putting in a new kenwood system in 05f150like to know if you should run new wires from amp or use exsiting wires IF you need to run new what gaugeand what gauge are the wires from factory system? Need to remove a part of CV joint that wont come out? What type of fluid does an international dozer use? What is the spark plug gap for a 1991 Force 50 hp? What does it mean when car runs hot in traffic and normal when speed is up? What kind of batteries are on a Boreem Tia scooter? Why is a diesel engine heavier than a petrol engine? Do you need to change coil packs when you change spark plugs? How do you remove the alternator on a 1997 Isuzu Rodeo? What happens when an alternator goes bad? What do you do when your trailer is overweight in the tail? What is the main regulator of CO2? Are Chrysler parts expensive? If you move the distributor towards the engine dose that advance the timing? What vehicle does the microgard mgl2 oil filter go to? How do you replace brake light switch on a 1997 GMC Sierra pickup? What kind of gear oil to put in a loncin 110cc? What is the purpose of the exhaust silencer box?