1) my dealer told me that my speed should not exceed 80 km/hr in the first 1k (1000 km)...should i do that?

2)after ignition , should i wait a little bit before starting to move (heating up the engine in am)...is that useful?

 

Varying ideas on these topics, but overall, owners manuals do recommend that you vary your speeds in the first 1,000 to 3,000 miles (those mileage amounts vary as well) and that you avoid gunning it during this time. I've also seen that you should not drive at excessive speeds during this time period.

As far as warming up, I understand this is not necessary if you live in a warmer climate such as AZ.

 

if you want to baby the engine, just be gentle on the first 1000 miles (i thought it's miles not km?), and try to vary your rpm and not just stick with a certain rpm. that's crucial

warming up, that's not necessary anymore with these new engines. start the car and go

 

how is it possible to vary rpm on the freeway

is it just gas and release, gas and release? lol

lexus recommends that you do not leave the engine on to warmout without moving. THey say to drive it to warm it up.

 

well, indeed that's what we did when we got our new cars kind of funny on the freeway, but hey, nothing to lose

 

Try going in & out of the slow lane lol . . .

 

According to the dealership I bought from, both the sales and service guys said there is no reason to do this on the 460 as the engines are broken in at the factory. I also didn't see any reference to this in the manuals, although I haven't finished them yet.

Still, I suppose it wouldn't hurt to err on the side of caution.

 

First congrats on the new car what color did you get?

In terms of the break in period it says in the manual to basicly take it easy on the engine without a speed limit, i didnt go with the dealer 80km/hr limit. I kept the RPM below 3000 and thats it.
I am not heating my car in the morning seems fine with that.

 

Engines are not broken in at the factory. It takes Lexus does not have time to break in a million or more motors a year. It takes like 10-15 hours of driving time to break in a motor.

Keep in mind, if you really baby the motor, the ECU will think this is your driving behavior and will program itself to match those driving characteristics.

The LS is not a super high performance motor, so I would not worry about too much break in, but just vary your cruising speeds, no redlining, and no full throttle until 1K.

There are also other theories that say to drive it hard, right from the start to make sure all the rings and seals get sealed properly, and to knock off any filings off motor parts. This is the wa a lot of race teams break in their motors.

As far as warming up, I just wait about 1 seconds to ensure oil distribution, then I go.