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Answer It is to do with the octane levels in the petrol. the higher the star the higher the octane. It used to be 2,3 and 4 star but now its mainly unleaded.
Many use standard petrol, some use high octane petrol.
150 octane Avgas (no longer used) 100LL Avgas 98 octane premium leaded (no longer used) 95 octane unleaded 82 octane regular (no longer used) 80 octane Avgas (no longer used)
they are quite different.. ethanol is an alcohol ..C2H5-OH while octane is a hydrocarbon... C8H18 . octane is an important part of petrol . similarity is that , ethanol also may be used as petrol (in combination) it is also known as Bio- fuel...
Most use 87 octane but some use 89 or 91 octane. The correct grade is listed in your owners manual.
C8H18 is the simple version of the chemical formula for any of the isomers of octane. This is best known as a major component in petrol/gasoline, although the octane rating is not related to the actual amount in the petrol/gasoline which is a mixture of several volatile hydrocarbons.
C4H10- Butane C5H12- Pentane C6H14- Hexane C7H16- Heptane C8H18- Octane C9H20- Nonane C10H22- Decane
87 octane oil mixture of 40:1
Yes, Alkenes are used for fuels - as they are one of our organic compounds in society. For example, fuel can be used for cooking and petrol.
Unleaded. Lead was used to increase the octane rating and improve performance. Not sold with lead in now, in the UK
I used top octane in my 1998 E320 before gas prices got up to $4.00 - now I use the middle octane. Mercedes recommends Premium fuel because of the way the engine is designed and the sensors. It runs much better on premium anyways. and if you cant afford the premium gas you have no business owning a mercedes.
91 Octane Premium Fuel. Use nothing less or nothing higher.