Leather is just like human skin. Cleaning and conditioning leather upholstery is very similar to bathing yourself out of a bucket on a camping trip. You need water to do the job, and you need to use the right amount to do the job right.
Clean one manageable section of the interior at a time. For example, clean the seat back and then the seat cushion.
Wet a washcloth in the bucket of water and wring it out until it's slightly damp. Put 2 or 3 half-dollar sized spots of Lexol-pH Cleaner on the damp cloth or spray it directly on the leather. Wipe the seat back and cushion with the wash cloth. Don't forget to clean the seams. Dirt can cut through upholstery thread over time, but proper cleaning with will extend thread life.
After washing each section, rinse and wring out the cloth again. Wipe the cleaner from the area you've cleaned and towel dry. Continue this process over the entire interior: cleaning, rinsing, drying.
The average sedan usually takes 30 minutes to clean and condition. This thorough treatment should be a 3 to 4 month regimen, depending on your use of the car and the climate where you live. Because of their exposure to the elements, convertible interiors tend to need more care. You'll soon be able to tell at a glance, or by touch, when it's time to clean and condition.
Applying Lexol Conditioner:
Conditioning leather is similar to applying moisturizing lotion to dry skin after a bath. Lightly dampen a clean washcloth or applicator so that it doesn't absorb too much conditioner. (No need to waste)
Pour, or spray-on the Lexol Conditioner (about 2 or 3 half-dollar sized spots) and wipe it across the leather. A little goes a long way. Two light applications are better than a single heavy application, unless the leather is very hard and dry.
The entire interior should be treated and allowed to set for 20 to 30 minutes. This enables the oils and preservatives to absorb. Then vigorously rub down the flat areas and seams to remove excess conditioner. Allow the interior to dry for one to three hours, depending on temperature and humidity.