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Take the old GOST, as far back as 1977: “Car gasolines. Technical conditions. " And compare it with the only binding document that now regulates fuel parameters - the Technical Regulation. For interest, we add to the comparison the document of “transitional times” - GOST R 51105–97.
Red in the table is “administrative obstacles” in the concept of current officials, green is freedom! As you can see, the table is becoming more and more green.
Note that now any state controller can check the quality of gasoline only for compliance with the Technical Regulations. But what to check? Do you think the main parameter of gasoline is its octane number? Now, according to clever rulers, this indicator can simply be declared. From now on, the name of the AI-95 gasoline is not a characteristic of its motor qualities, but simply … the name. And what they pour, these are your problems.
Have you heard of stuck valves? About the dead piston rings? About burnt pistons? The reason is often a large amount of tar in the fuel. Previously, their content was strictly controlled, but now - alas … And all because gasoline, in which there are no tar, requires serious production technologies. Much easier to rewrite a piece of paper.
We did the same with the parameters of the fractional composition, the induction period of gasolines, their acidity and tests on a copper plate. For oil industry workers, the implementation of these norms is very dreary: investments are required. Yes, not to “folk” football clubs and yachts, but to production … Down with them from the Technical Regulations!
The same with density. Refineries trade in tons, and gas stations sell in liters. So what is more profitable for them - light fuel or heavy? But the motor, especially the injection one, is calibrated at a certain specific density. And if it is seriously different from the reference, the "brains" of the engine begin to fool. The motor twitches, more fuel is consumed, and toxicity is not all right. But who cares?
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The table opens in full size at the click of the mouse.
For diesel fuel, we take only the most sensitive issue - summer / winter. The evaporation rates for summer diesel fuel and for winter diesel fuel should vary sharply. In addition, diesel fuel is noticeably thicker than gasoline, in the cold it does not want to flow and filter somehow. Old GOST 305–82 introduced three types of diesel fuel: summer, winter, and Arctic. Then freedom came! And with it is the new GOST R 54283–2010, where fuel seasonality is completely excluded from the names: now there are no summer or winter diesel fuel. And what does the Technical Regulation say? Something slurred about fuel for some “cold climate” …