Sorry Leon, but you have a bit of an error in your letter. Mobil1 always

has and

always will have zinc and phosphorus anti-skuff compounds in it. Though

the newer

SJ oils have less than the older models.

But it is true that the synthetics burn much cleaner than the standard

dinosaur

juice. My friends use it on cars that fail emissions for oil burning, it

burns

much cleaner and often gets the car to pass. Though it does loosen up old

oil

deposits and can cause damage to a poorly maintained engine then.

Blake

George Lendich wrote:

Blake,
Does it actually burn, and burn well or does it just hang around to turn
into something else
that causes problems or just go out the exhaust.
George (down under)

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