I am now on my 4th tank of Vortex98 and I gotta say...it is noticably better than Ultimate in my car - more torque, smooth revving, even squeezes abit more mileage per tank too.

Not sure why this would be so, but even the wife noticed the difference without any prompting so that says alot coz when it comes to cars she can't tell the difference between a car and a bar of soap. Plus I never told her I changed fuels.

I'll be sticking to Vortex98 for the foreseeable future and also benefitting from the 4c vouchers.