For most of the time when dealing with a common customers car which most times I am faced with a problematic paint finish I sometimes opt to use a waterless wash to see what i am faced with and how much compounding and polishing is needed.

I need to really see the reflection of the paint which aids me in the proper assessment of the paint finish. Combining this with an electronic paint guage gives me a clear view as to what i have to do to correctly recondition the painted surface.

For a vehicle like yours there are waterless wash products with and without polymer wax so using one without would be used on a vehicle with a great paint finish like yours.

With the bucket and wash method with optimum no rinse while washing the car and placing your wash mitt or microfiber back into the same pail it can lead to scratching due to the particles and dirt previously removed from the surface and being put back into the bucket and then re introduced onto the surface of the vehicle again.

It's easier to use a spray waterless wash and a microfiber without the bucket.

Many years ago when my father ran this business (He operated a detail shop in huntington for over 45 years) we would keep a bucket with whitewater kerosene and water to wash a car similar to the optimum no rinse method.....can't do that now but that was the old school way!

There are also some natural products out there on the market that are formulated to work like kerosene and water (coconut & soy) which are ingredients that give a great shine as well on a vehicle's surface. the combo of coconut and soy mimic a solvent like kerosene.

With that said there is no clear cut method but do what works best for you.