These two belong to regular customers and I wash each one every 2 weeks. Both where detailed in the last 3 months and I used Optimum Car Wax on both. The last two times I have washed them, I've finished them off with Zaino Z8 Sealant Spray. Really helps keep the cars looking wet and feeling slick. Z8 is the one Zaino product I seriously like. 
1998 BMW 740iL
1998 Mercedes CL500
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1998 BMW 740iL


1998 Mercedes CL500


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