03/08/2026
Let's talk about the actual difference between 91 vs 95 ⛽
A lot of people think 95 is just "better fuel." It's not about quality, it's about how well the fuel resists igniting too early under pressure (called "knocking").
🔹 91 (Regular- the green one) is for engines with lower compression. No turbo, no supercharger, no problem. This is what most everyday cars are designed to run on.
🔹 95 (Premium- the red one) is for engines that squeeze the fuel/air mix harder (higher compression, turbocharged, or supercharged). These engines need fuel that won't ignite too early, or performance and engine health can suffer.
So which one should YOU use? Check your fuel cap or owner's manual. If it says "premium required," use 95 because the engine's computer is tuned around it, and running 91 means losing power, efficiency, and potentially adding wear over time.
If it just says "regular unleaded" or doesn't require premium, 91 is all your engine needs. Putting 95 in won't hurt anything, but you're paying more for a benefit your engine isn't built to use.
We hope that's useful ☺
Your Neighbourhood Mechanic offering vehicle servicing, diagnostic and auto-electrical services, WOF and general repairs. Specialists in European vehicles, access to loan vehicles and Saturday opening hours.