Stephen Praibin

Lexus Australia do not have the ability to monster a dealership but they can make sure the correct process is followed. The Lexus Customer Assistance Centre will just direct you back to the dealership. Technical and service related escalations go up to Lexus technical and warranty. The service manager will to this if necessary.

To me it sounds like a CV joint. Even on low km vehicles this can be caused by a split rubber boot allowing dirt to get in.

A Lexus dealer will at least diagnose the problem for you

When a camshaft seizes is means there was an interruption to the oil supply. If the timing belt snapped as a result the the motor will be toast as allthe valves would be bouncing on pistons.

I would think its a new motor or a major top end rebuild. Ask your Lexus dealer for the best advice.

Look at the owners manual. Normal consumption is one litre per 1000kms.

The sumps on today's cars, including Lexus, are very small....about 5 litres. So if you don't check the oil regularly it may run very low. Certainly a few times between services to be safe.