These engines and gearboxes aren't really picky on the viscosity of the oil (they are marketed on a lot of countries), but my guess is the thinner oils are more dictated by fuel economy measures than anything else.
What mileage does your car has? WD40 should at least make the gearstick move more easily (when I got the car mine wasn't sticking but was quite hard to move).
(what I meant by "crazy" is that they actually changed oil recommendation on a pretty old car, didn't expect that)
What mileage does your car has? WD40 should at least make the gearstick move more easily (when I got the car mine wasn't sticking but was quite hard to move).
(what I meant by "crazy" is that they actually changed oil recommendation on a pretty old car, didn't expect that)