The problem is not to get you car to run optimally, but to keep it in that

mode.

A brand new engine needs no octane boosters. Then after it ages and gets

crapped up inside, it's octane requirement increases... Adding octane

boosters is like a fix for an addict. And, naturally, since such products

are intended to boost octane with little/no regard for long-term engine

cleanliness (nor the health of those who come in contact with it), your

engine will quickly become addicted to the octane booster, often to the

point that using it no longer produces any benefit but failure to use it

will result in degraded performance.

I've been down that road...

FAR better to keep your engine new-like clean and its octane requirement

new-like low.

The one product that can do this for my engine is DurAlt Fuel Conditioner.

Among its many talents is the ability to let '60s-era muscle cars that

'require' leaded high-octane gasoline to run safely and well on modern

unleaded fuel.

What matters is the difference between a fuel's octane and an engine's

requirement. Keeping the requirement minimized and the engine cleaner

is the way to go, for multiple reasons...

- Dave; '95 854T, 110K mi