I always see people asking “Does my car need fuel grade 98?”. Some swear by it and give many reasons. Some just think it is a pure waste of money. There are many reasons online that you can find like what is the advantages of 98. But is 98 really good? I will skip all the scientific reasons and just go for my own feeling after testing. I have driven a few types of cars before and always tried 95 and 98 (even different brands of fuel) to see if there is really difference. My conclusion is
1. Different brands fuel do have some very minor difference. Like fuel efficiency, smoothness of accerelation. But overall, not a deal breaker.
2. 98 is only needed for supercharged or turbocharged car.
I have driven from 1.6l to 4.6l cars before. Also has driven supercharged and turbocharged cars before. I found that big engine cars not necessarily need 98. I pump 95 and 98 on a non supercharged or turbocharged 4.6l car. Accerelation and performance feel actually not much difference. But on a 3l supercharged or turbocharged, the acceleration smoothness and performance, you can feel it. But of cos there are many “scientific reasons” that 98 might be better. So is up to you to decide.
Is It Good?? 