Can Sinopec and PetroChina gasoline be mixed?

2 Answers
DiKatherine
07/24/25 7:20am
As long as the gasoline specifications are correct, Sinopec and PetroChina gasoline can be mixed. Below is relevant information about automotive gasoline: 1. Anti-knock property: The evaluation index for gasoline's anti-knock property is the octane number, which is the gasoline's grade. It represents the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. Standard gasoline consists of isooctane and n-heptane. Isooctane has good anti-knock properties, with its octane number set at 100; n-heptane has poor anti-knock properties and is prone to knocking in gasoline engines, with its octane number set at 0. 2. Principle: The main basis for selecting gasoline grades is the engine's compression ratio. Parameters such as compression ratio and ignition timing have already been set in the engine's computer. As long as car owners strictly follow the instructions to choose gasoline, there will be absolutely no problem.
Was this review help?
10
5
Share
MacSara
08/11/25 3:06am
I've been driving for over a decade and often encounter situations during long trips where I can't find a PetroChina gas station, so I have to fill up at Sinopec, or vice versa. To be honest, both types of fuel are national standard gasoline with the same octane rating, and their base oil formulations are quite similar. National regulations require compatibility, so mixing them occasionally isn't a big issue. In the short term, it won't damage the engine or clog the fuel injectors. However, there are slight differences in additives—Sinopec's formula includes more cleaning components, while PetroChina's has better antifreeze properties. Mixing them might slightly reduce combustion efficiency and increase the risk of carbon buildup. For the long term, it's advisable to stick with the same brand to help the vehicle adapt and to perform regular fuel system maintenance. On highways where gas stations are scarce, mixing fuels in an emergency is perfectly fine, as long as it's not done long-term. This approach protects engine longevity and avoids unexplained increases in fuel consumption.
Was this review help?
14
1
Share
Expand All
More Forum Discussions

What is the difference between insufficient engine oil and insufficient fuel?

The difference lies in the warning indicators. There is no specific "insufficient engine oil" warning light, only a "low oil pressure" indicator, which is a red light shaped like a small oil can. Insufficient fuel is indicated by the fuel gauge needle reaching the red line, and in most cases, a yellow warning light will illuminate. Below are the relevant details: 1. Engine Oil: Engine oil primarily serves to lubricate mechanical components, reducing wear and extending the vehicle's service life. It is categorized into synthetic and semi-synthetic oils, which have similar performance and functions but differ significantly in service life. Generally, semi-synthetic oil needs to be replaced every 3,000-5,000 kilometers, while full synthetic oil can last up to 10,000 kilometers. 2. Fuel: Fuel is a mixture of various oils and residues. After refining and purification in a refinery, it is separated by distillation equipment at varying temperatures from low to high, producing the following products in order: overhead gas, gasoline, kerosene, diesel, and residual oil.
11
2
Share

What causes the horn to become muffled after a Golf wades through water?

Since the horns of most vehicles are installed near the front bumper, when the vehicle wades through water, external water can enter the high or low-frequency horn, causing a change in sound. If you notice the horn sound has become muffled, the first step is to remove the horn, which can be done by yourself or at a professional repair facility. Below is some relevant information about the Golf car: 1. Model Overview: The Volkswagen Golf is a best-selling car under the Volkswagen brand. It is the most produced model by Volkswagen and also the best-selling Volkswagen model, ranking third among the world's best-selling car models. 2. Powertrain: The Volkswagen Golf is equipped with Volkswagen's most advanced 1.4TSI engine and a 7-speed dual-clutch transmission, providing strong power, which is also one of the reasons many consumers favor it. 3. Safety Systems: In terms of active safety, as a compact car with a standard multi-collision brake system, the new Golf effectively prevents injuries caused by secondary collisions. It is also equipped with multiple active safety systems such as a lane-keeping system, rear traffic alert, fatigue monitoring system, tire pressure monitoring, and newly added rearview cameras and blind-spot monitoring.
18
3
Share

What does a long-term driver's license mean?

Here are the relevant regulations regarding whether a driver's license is long-term: 1. Definition: A long-term driver's license refers to a driver's license without a renewal period, which can be understood as a lifetime driver's license. 2. Scoring cycle: If a driver has not reached 12 points in each scoring cycle within a 6-year period, they can exchange it for a 10-year driver's license after the 6-year period expires; if they have not reached 12 points in each scoring cycle within a 10-year period, they can exchange it for a long-term valid driver's license. 3. Physical examination certificate: Drivers holding a long-term driver's license must submit a physical examination certificate annually after reaching the age of 60, otherwise the driver's license will become invalid. The renewal application can only be submitted within 3 months before the driver's license expires. If the driver's license is expired (not renewed on time) for less than one year, it can be renewed normally. If it is expired for more than one year but less than three years, the driver's license will be revoked, and the driver must pass the subject one exam to renew it. If it is expired for more than three years, the driver's license will be invalid and the driver must reapply for a new one.
18
0
Share

How Often Should the Battery of a Haval H6 Be Replaced?

The service life of the Haval H6 battery is 2-3 years, and the original battery of a new car can last more than 3 years. The following are specific classifications of car batteries (also known as storage batteries): 1. Ordinary battery: The plates of an ordinary battery are made of lead and lead oxide, and the electrolyte is an aqueous solution of sulfuric acid. Its main advantages are stable voltage and low price; the disadvantages are low specific energy (i.e., the amount of electrical energy stored per kilogram of battery), short service life, and frequent daily maintenance. 2. Dry-charged battery: Its full name is dry-charged lead-acid battery. Its main feature is that the negative plate has a high storage capacity. In a completely dry state, it can preserve the obtained power for two years. When in use, you only need to add electrolyte and wait for 20-30 minutes before it can be used. 3. Maintenance-free battery: Due to the structural advantages of maintenance-free batteries, the consumption of electrolyte is very small, and it basically does not need to replenish distilled water during its service life. It also has the characteristics of shock resistance, high temperature resistance, small size, and low self-discharge. The service life is generally twice that of ordinary batteries.
20
5
Share

What is the maximum age for driving with an AB driver's license?

Holders of A or B driver's licenses who are over 60 years old must apply to replace their licenses with ones that permit driving small cars or small automatic transmission vehicles, and the license will not be automatically downgraded. Below are the relevant details: 1. According to the 'Regulations on the Application and Use of Motor Vehicle Driver's Licenses': Article 59 states that individuals aged 60 or above are not allowed to drive large buses, tractors, city buses, medium-sized buses, large trucks, trolleybuses, or trams; holders of licenses for large buses, tractors, city buses, medium-sized buses, or large trucks must go to the vehicle management office at the place where the driver's license was issued or another location to replace their licenses with ones that permit driving small cars or small automatic transmission vehicles. 2. For downgrading: When going to the vehicle management office for downgrading, the required materials include the applicant's ID card, a copy of the ID card, and a white-background photo. Additionally, it is necessary to visit the driver's service window at the place where the A2 license was issued, inform the traffic police staff of the need to apply for an A2 downgrade, and choose between a C1 or C2 driver's license based on personal needs.
5
4
Share

What is the fitting clearance between the connecting rod and the crankshaft?

The diameter of a passenger car crankshaft is generally around 6-7 cm, with a clearance of 0.04±0.01; the diameter of the connecting rod is generally around 4-5 cm, with a clearance of 0.03±0.01. The exact data may vary depending on the specific vehicle model, and accurate data can be found in the relevant vehicle's repair manual. Here is the relevant introduction: 1. Connecting rod and crankshaft clearance: A certain clearance between the engine's crankshaft and connecting rod is a necessary condition for its normal operation, as the crankshaft will expand due to temperature rise during operation and have some axial movement. The reserved clearance ensures it can still operate normally after expansion. However, this clearance should not be too large. If the reserved clearance is too large, abnormal axial movement of the crankshaft and connecting rod will occur during engine operation, leading to faults such as piston deflection and connecting rod bending. 2. Indicator: The assembly clearance of the crankshaft and connecting rod, as an important indicator during the assembly process, must be strictly monitored. Whether it is manual assembly or assembly line production, necessary measures will be taken to measure the crankshaft and connecting rod clearance, troubleshoot products with unqualified clearance, and ensure the clearance is qualified before proceeding to the next production step.
2
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.