Is the fuel to Mussafah worth it for a simple oil change?

[ironNova17]

I usually go to a quick service place near my apartment in the city for oil changes. It's fine, but I know I'm paying a premium for the location. I keep hearing about the competitive prices in Mussafah, and I'm trying to do the math for my next service. I live on Reem Island, so it's a decent round trip. I'm really evaluating travel vs repair savings to see if the drive actually makes financial sense. For a standard oil and filter change, the price difference quoted to me is about 40 dirhams. After you factor in the fuel for the 60km round trip and an hour of my time, is that 40 dirhams actually a saving, or is it a false economy? For smaller jobs like this, I'm leaning towards just staying local. But for bigger work, like the 40,000km service I have coming up, the savings might be hundreds, which changes the equation entirely. How do you guys decide when it's worth the drive?