I know this has been asken a million times and I've looked through the topics, but you guys in the bigger world seeem to have different grades of oil than us here in Finland, North Europe, so I want help on making a decision on which oil to use; (meaning we don't basicly have 10W30 which seems to be the recommendation)
The engine is F2T (Ford Probe), stock boost and basicly no mods, but I will start adding some mods when its good stock condition.
Valvoline Maxlife 10W40, for engines driven over 60k miles. The one which I preferred if there's no difference cos' I use it on my Protege 1.8 DOCH BP and been happy with it in that car
Ford Formula 5W30, apparently a very good oil for Fords and other cars that may use 5W30
Both are good oils & about the same price (good value too), the main concern is the viscosity, 5w30 or 10w40?
Probe is a summer only car for me and in the summers we have ambient temperatures of 60 F to 90 F (15 C to 30 C) on an estimate.