How to distinguish between 90 and 93 gasoline
Thread Content
When we ordered the fuel, the supplier said it was 93 octane gasoline, but we’re worried it might actually be 90 octane. There’s no way to tell the difference. Do you have any simple ways to figure this out?
Chromatographic analysis can show that the chromatograms of straight-chain hydrocarbons differ from those of branched-chain hydrocarbons; if the company doesn’t have such facilities, it can send samples to universities for analysis… Nuclear magnetic resonance can also be used~~~~
Just perform an octane rating test. . . It is necessary to carry out both the Ma method and the Yan method in order to determine whether it is a \"Ma Jia\" oil that is direct steam after the addition of alcohols, ethers, and aromatics. . . Haha:lol
Test the octane rating; it’s a bit troublesome, but it’s very effective.
Why can’t I see the remarks? Q This post was last edited by qqki86 on 2009-3-25 21:31 ]
Testing octane is a tedious process, and there is no quick way to distinguish between 90-octane and 93-octane gasoline:
The octane rating of gasoline refers to its resistance to detonation, that is, its ability to resist spontaneous combustion. Detonation occurs when the temperature in the engine rises suddenly during the compression stroke, causing the fuel-air mixture to ignite on its own! The octane rating of gasoline is determined based on its octane number, but this does not indicate the actual amount of octane present in the fuel; it merely indicates that the fuel has the same anti-knock properties as a fuel with the same percentage of octane. Therefore, measuring the octane number is the most reliable method/
Agree with the opinion on floor 4; it’s sufficient to measure RON and MON
The octane rating of gasoline is actually its octane number. Measuring the octane rating of petroleum products is the most accurate method for identification; go to a testing facility to have the RON (Research Octane Number, which indicates the gasoline grade) and MON (Motor Octane Number) tested. There are rapid gasoline octane rating testers available on the market for selection.
Perform chromatographic analysis. The octane rating can be calculated··
Determining the octane rating is the most effective method; it’s difficult to distinguish it using other approaches.
It’s best for LZ to have the measurement taken at a testing station; the octane rating cannot be determined by visual inspection, and gas chromatography doesn’t seem to be a reliable method either. These days, many 93-octane fuels are formulated by adding manganese agents; it’s normal for some of them not to meet the standards. Many fuel dealers purchase 25 tons of 90-octane fuel from factories and then add anti-knock agents to it, selling it as 93-octane fuel. Therefore, everyone should be vigilant and conduct random inspections from time to time to protect their own interests. Additionally: It is artificially specified that n-heptane has an octane rating of 0, while isooctane has an octane rating of 100. Through testing, it can be determined whether the anti-knock properties of the gasoline in question are equivalent to those of a mixture containing a certain percentage of isooctane; thus, it can be determined what octane rating the gasoline has!
The difference between 90# and 93# lies in their resistance to detonation, as indicated by different octane values; without testing the octane rating, how can one tell whether it’s genuine or not? Everything must be backed by data. . .