The GT86 has had damn all use in the last 6 months, due to house stuff getting in the way. It hasn’t been near a track (boo!) and has hardly even been on the road. So it’s taken me this long to rack up 1000km since I swapped out the 6 year old OEM Primacies for new PS4s.
However having tripped over that mark:
- Average fuel consumption for the 1000km before the tire swap: 6.9l/100km (34.1 mp(US)g).
- Average for the 1000km since: 7.6l/100km (30.9 mpg).
Both doing the same trip routine (80% freeway, 20% town, maybe 20% of the freeway time in stop-go traffic), and measured by the trip computer.
So exactly 10% worse fuel consumption from the PS4s.
Big improvement in wet grip though - the Primacies were getting lethal towards the end.