The engine gives an alarm after storing No. 97 gasoline for a long time
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For regular 97-octane gasoline from Sinopec and CNPC, if it is stored for more than a month after being received, it can cause the vehicle’s engine to show an error light; this is not the case with gasoline that has just been received. The problem usually starts to appear after about a month of storage. Does anyone know what change in this indicator caused it? Please give some advice. Thank you!
When gasoline is stored for an extended period of time, gums are formed. To understand this in more detail, you can look up the induction period of gasoline; that will make it clear to you
Increased gel content, decreased octane rating. What was the content of the alarm?
If an alarm is triggered, it’s likely due to too much carbon buildup at the spark plugs, which needs to be cleaned. The 97# fuel probably doesn’t burn as well, resulting in some carbon buildup.
Measure whether there is a change in the gelatin content after solvent washing.
If that’s the case, it is recommended to mix in new oil and drive at high speeds; afterwards, give it another injection 《clean the throttle valve》
First, take samples to test for changes in the sample parameters, and make a confirmation based on those changes.
Generally, if gasoline is stored for too long, the gum content increases, and the induction period has an impact, resulting in a decrease in octane rating. The specific values are related to the properties of the oil, as well as the volatilization of light components. Also, what kind of additives are used in your 97# product, and will there be any changes over time? Generally, metal anti-knock agents used as additives can cause engine alarms, and this phenomenon can occur even right after they have been mixed in. Analyze each case on a case-by-case basis; use a computer to check the vehicle’s control unit and make a judgment based on the warning data!
Is the induction period of the oil not up to standard? Oxidized?