Just calculated the mileage: 38 US MPG @ mixed driving, only mod is raised tire pressure.
Fuel used is 95E10(gas that is about 90U.S octanes, with 10% ethanol)
and I run 10w-40 in my engine. Gearbox uses GL-5 certified mineral oil.
And the oils are made by a cheap swedish brand and bought from a hardware store
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If you don't make any mistakes in your life,
life itself will be a f*ckup.
With Volvo to Valhalla and back!