Just ordered some of this stuff, going to do a full oilchange on my engine once it hits 1000 miles, so I'll post results and see if it does what it claims! From the looks of the testimonials, this stuff looks like it may even save your hide if you have an older Celica that develops the oil burning problem..
OK folks I have done the Activ 8 treatment - all I can say is, if you have an open mind to try this stuff you will not be disappointed. My engine now runs virtually SILENT at idle, all you can hear from the front of the car is the solenoids firing in the injectors! The engine seems to rev even more eagerly and in general feels unbelieveably silky smooth, think I will try it in the gearbox next.. From me, I'd say definitely worth a look
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