99 3.5l TH Manual Sports. 2.5" Full Exhaust System w/ hotdog, sports muffler & 3" dump tip, full whiteline suspension.

Ive had it six mths and never gotten less than 500klms, and that was based on fangin round the streets of Melbourne. Now living in the country(80% country/20% city cycle) it sits on 8-9l/p 100klms which gives me up to about 700ish per tank, if running premium up to 800per tank.
Its over due for a major service, which will be done shortly, including engine/gearbox oils, flush and refill brake fluid, timing belt, plugs(all 6) & leads, all filters, camshaft seals, new rocker/manifold gaskets. And a new HD clutch will be fitted at the same time.
Hoping this will make it a bit smoother.
Luke