Is Costco premium gas good for BMW?
Noah Mitchell
Published Jan 06, 2026
We use Costco gas in all our BMW and other cars. I even use it in my Bmw m8 v8 with twin turbos. It's perfect and works well. Kirkland Signature gas meets all Top Tier requirements, including Regular, Premium and Diesel.
What gas station has the best gas for BMW?
Worth gas stations that comply with Top Tier requirements are Chevron, Conoco, Exxon, Mobil, Phillips 66, Quik Trip, Shell, and Texaco. These oil companies pay to have their fuel tested and approved under stringent Top Tier standards.
Is Costco gas good premium?
Types of Fuel and Fuel Quality. Is Costco Top Tier certified? Yes both grades of gasoline sold at Costco meet and exceed Top Tier requirements. The owner's manuals provided by the following manufacturers recommend using Top Tier gasoline to maintain optimal engine performance.
Is premium gas good for BMW?
No matter your model, BMW recommends using only premium-unleaded fuel. That's not to say your BMW won't run on lower-grade fuel, but premium-unleaded fuel will maintain its quality in the long run, letting you drive at peak performance consistently.
Can I put midgrade gas in my BMW?
The short answer is - nothing. Most BMWs can run on regular gas so you aren't at any risk of causing damage to your brother's car. When you put regular gas in a BMW as opposed to premium, the car will recognize this and may run with a little less power and less timing but all components will work properly.
41 related questions foundCan I put 93 gas in my BMW?
BMW requires 91-octane fuel at a minimum, with 93 recommended, so we did just that, switching between the common forms of premium gas depending on which state you're in.
What happens if I don't use premium gas in my BMW?
BMW, for example, recommends that all the cars it sells in the United States use premium fuel, but they will run on regular. “There generally isn't any harm done to the engine by using lower-octane fuel,” said a BMW spokesman, Thomas Plucinsky.
Can you put 89 gas in a BMW?
BMW states that the minimum AKI Rating is 89 in their manual so the engine should be fine with that fuel.
Who has the best premium gas?
#1.
By far, Chevron has the best quality gas in the United States. Their Techron blend of additives has been found to reduce carbon deposits and keep your engine running clean for thousands of miles. In addition, Chevron gas stations are easy to find.
Will premium gas hurt my car?
Cars that require premium gasoline have high-compression engines, turbochargers, and other high-performance aspects. Not using premium won't necessarily hurt your engine, but you could lose some of the performance of that premium engine you paid for if you use regular or midgrade gas.
Why you shouldn't buy gas at Costco?
Costco's long gas station lines are notorious. People have reported waiting more than an hour for the chance to fill their vehicles, an expenditure of time that hardly justifies the few dollars that would be saved by skipping a standard gas station, where there is often no wait at all.
Does Costco gas ruin your car?
Despite its name, Costco gasoline doesn't ruin your vehicle. Many of Kirkland Signature gasoline's detergent additives have been used to make gasoline and your car cleaner.
Is Costco gas as good as Shell?
Costco Gas Vs Shell, Mobil, Texaco, Chevron, & Exxon
According to some Reddit threads, Costco gas is essentially the same quality as many gas companies, including Shell, Mobil, Texaco, Chevron, and Exxon.
Does BMW recommend Shell gas?
BMW recommends Shell gas, but it's more expensive than other brands - BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST. As most of you know, BMW recommends Shell gas for our BMWs.
Why does BMW recommend Shell fuel?
Because Shell paid more money to be the official fuel recommended by BMW. It's all about the marketing dollars and has nothing to do with the product being good, bad, or better. Because Shell paid more money to be the official fuel recommended by BMW.
Is ethanol free gas better for BMW?
The short answer is, no, ethanol-free gasoline is not bad for your car. Most cars today can run on ethanol gas blends up to E15 (15% ethanol) and on non-ethanol gasoline. And flex fuel vehicles can handle up to E85 (85% ethanol) without a problem.
Is Costco fuel good quality?
Costco gasoline is excellent and meets the Top Tier grade, which means it complies with US regulatory additive regulations. Furthermore, this petrol is several cents cheaper per gallon than other competitors.
What is the best gas to put in your car?
Regardless of whether your car calls for regular or premium, the best choice for ongoing performance and economy is a TOP TIER gasoline. Recent AAA testing found TOP TIER gasolines keep internal engine components up to 19 times cleaner than gasolines that only meet minimum EPA standards.
Does premium gas give better mileage?
So is Higher Octane Fuel More Efficient? In a word, no. On its own paying for premium gasoline does not make your car run better or get greater gas mileage. Giving your car the fuel it requires to run smoothly and efficiently, without damage to the engine, does make a difference in your fuel mileage.
Do BMWs have alot of problems?
There are certainly BMW's that have been plagued with frequent, costly issues. It is not hard to find horror stories and complaints about reliability. However, on the opposite end, there are also plenty of BMW's that surpass 100,000 miles with no issues, or few minor issues.
Do BMWs break down a lot?
Do BMW Break Down A Lot? No, BMWs do not break down at a higher or lower rate than other cars. RepairPal reports that the average BMW will need to visit a repair shop for unscheduled repairs 0.9 times per year.
Does BMW 325i need premium gas?
In short, you should use premium. Any lower and you will take a performance AND possibly a MPG hit, making the cost savings null.
Do I have to put 91 octane in my BMW?
This starts with the type of gas that you use. BMW recommends that their drivers only use high-octane fuel, such as 91+ octane. This will help ensure you BMW performs at its best, though, as with any fuel option, there are some pros and cons to 91+ octane fuel.