nos13keys

ps recommended service interval in my owners manual is 10,000km or 6,200 miles

Just had my 2001 gs300 120,000km service with Lexus they put Toyota Fully Synthetic 5w/40. .

If i brought the car new and intended to keep it for its life then i would go synthetic but I intend to keep it for about 5years

so as long as the oil is good quality I dont care

Sounds like a throttle problem, this is how i understand it.

remember there isnt any throttle cable its early drive by wire system so the accelerator is basically an electrical button connected to a switch in the engine.

If some of that system is out of adjustment and the switch in the engine gets a signal it will accelerate. my 2001 GS300 doesnt do that but it is very sensative in the accelerator and sometime in the city I will hold it a second on the brake because as soon as i touch the accelorator it takes off