my local auto store just started stocking AMSOIL syn oil.i looked on the back and for the 0w30 it stated that the oil was good for 30-35000 miles or a year(whichever comes first).it did say to change the filter as per manufacturers instructions.i sanybody familiar with this brand and what are the prices in your area?rather expensive up here !

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'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'86 tbirdturbo(gone)
'85 mustang gt(gone-but not forgotten)