See also:

M in the Market
The M is as competitive as ever, and not just in a practical way. This car is fun — to drive, to look at, to sit in. In a field of climbing prices and checkered quality, it's nice to see an old fa ...

Octane rating tips
Using unleaded gasoline with an octane rating lower than recommended above can cause persistent, heavy spark knock. (Spark knock is a metallic rapping noise.) If severe, this can lead to engine damag ...

Changing engine coolant
Major cooling system repairs should be performed by an INFINITI retailer. The service procedures can be found in the appropriate INFINITI Service Manual. Improper servicing can result in reduc ...