Mobil Vs Shell Gas  

By Irene Daraman Written by Irene Daraman Expertise: Technology, Learning, and Money Title: - Author and Freelance Writer Education: - Bachelor of Science in Nursing, University of La Salette Work Experience: - Registered Nurse with 10+ years of experience in BPO and healthcare industries - Management position in a Fortune 500 company, driving operational excellence and exceeding targets - Designing and implementing business plans and strategies to promote the attainment of goals, including financial (money matter), technology, and internal learning and development - Patient care coordinator in a California-based private practice - Experience as a personal injury medical records reviewer and demand letter writer in a Texas law firm - 5+ years of content/article writing experience, delivering engaging and informative pieces across various domains About: I am a Registered Nurse with 10+ years of experience in BPO and the healthcare industry. With a specialization in public and community nursing, I possess a deep understanding of patient care. Currently working in a management position at a Fortune 500 company, where I drive operational excellence and exceed targets. I am responsible for using technology at work, and driving learning and development. I am an expert in technology, learning, and money related topics from my corporate work experience. Public Profiles:
Updated on July 10, 2022

Choosing the right fuel brand for a vehicle is very important because each brand has different fuel properties, such as detergent additives that can prevent carbon deposits inside the car’s engine. Learning the difference between fuel brands helps you to choose the right fuel suitable for your vehicle.

Two of the most trusted fuel brands are Mobil and Shell. These large oil companies continue to thrive in the oil and gas industry worldwide. They are both listed as Top Tier gasoline which means they both have special detergent additives in their gas. But, which of the two is the better brand? Knowing the edge of each brand would help us decide which fuel brand to choose between these two.

Which has better gas quality between Mobil and Shell?

Mobil and Shell are equally high- quality gas listed as Top Tier Gasoline  

The efficiency of your car and engine life is determined by the fuel quality. Mobil and Shell quality never failed the public. But the public has a divided opinion when it comes to the gas quality of Mobil and Shell. There are those who say that their car is better with Shell’s V-Power and there are those who say that the Exon is better. But in reality, these two brands are both Top Tier gasoline which means they both have special detergent additives in their gas that helps to reduce the carbon formation inside the engine allowing the vehicle to reduce emissions and improve fuel economy. So, to answer which gas has better quality between the two, the answer would depend on the actual experience of people.

What should I use between Shell and Mobil gas for my car?

Choosing between Mobil and Shell depends on your car, price and availability in your location.

When choosing gas between Shell and Mobil, there really isn’t much difference between Shell and Mobil. Although the price is a big factor. Mobil is often a few cents cheaper than Shell, but there are times that Shell is cheaper than Mobil. However, the price is not enough to be the basis when choosing the right gas for your vehicle. It is best to consider the manufacturer’s recommendation on what brand to use. It would also help to know how your car behaves when using a specific fuel brand because even top-tier gas such as Mobil and Shell could cause fuel knock on a vehicle. Considering Shell and Mobil are both top-tier gas, choosing between Mobil and Shell would depend on you and your car’s performance.

Which is more recommended in the US: Shell or Mobil?

Shell has higher market share than Mobil

The United States of America is one of the largest countries consuming fuels, with 934.3 Yearly Gallons Per Capita. According to Oil Price Information Service or OPIS (a price-reporting agency), Shell ranked number one with a 12.4% market share in 2018, seconded by Mobil with a 6.1% market share. Based on this data, Shell is experiencing higher sales through consumer base expansion than Mobil. True enough, Shell has 14,000 branches across the US compared to Mobil, with only 11,000 branches.

Thus, we can say that the number of people consuming Shell is higher than Mobil. Not because of its quality, but because of the availability of a gas station at a specific location. Aside from this, many car dealerships also recommend using Shell. But it has nothing to do with its quality, but because Shell spent more money to be the official fuel recommended by these companies.

ExxonMobil vs Royal Dutch Shell comparison

Product quality

There isn’t much difference between Shell and Mobil in terms of their quality because both brands are Top-Tier Gas, which means they have met higher quality standards and have detergent gasoline additives at the correct concentration.

Ethanol Level

Ethanol level in any fuel brand is crucial because too much ethanol content can cause damage to your car, specifically the fuel pump of the vehicle. Mobil’s E10 gas contains 10% ethanol, while Shell has 15% ethanol for its E15 gas. Although Shell E15 Regular 88 is 5% higher than Mobil’s E10, it is still within the US government standards.


The price of gas fluctuates depending on the crude oil price and taxes in an area. The price of Mobil and Shell is pretty much the same. There are areas where Shell is more expensive, and there are areas where Mobil is cheaper. It helps to use applications to identify branches with lower prices, such as GasBuddy and many others. As of July 2022, according to AAA, the National Average of gas in the US is $ 4.69.

Which is the Top Tier Detergent Gasoline between Mobil and Shell?

Both Shell and Mobil are Top-Tier

Both Shell and Mobil are Top-Tier gas which means they meet the high standards of the TOP TIER™ program, are treated with an approved Detergent Gasoline additive, and are free from organometallic additives.