Koch Chemie Green Star All Purpose Cleaner GS

Koch Chemie Green Star All Purpose Cleaner is a dilute-able cleaner that can be fine tuned to the application area. With dilutions included on the label, simply match up the job and get it done. Pre-treating specific exterior areas, dissolving insects and bug guts, getting a heavily soiled interior surface back to an acceptable look are well within the realm of what this product can do. VERY reasonably priced, and considering you can this alkaline cleaner for so many tasks, you pretty much need to have this at arm's length at all times.

Use on interior and exterior of cars and trucks along with engine cleaning thanks to its enormous dirt and oil carrying capacity. Special corrosion inhibitors ensure high material compatibility with regard to sensitive components such as, eg, anodized  aluminum. May be used in an extractor for carpet. 

Typical jobs aside, Green Star at 1:10 removes spilled oil from a driveway... saturating the spill area after you've removed the majority of the spill and left to dwell for a minute or two pulls the oil up, and then just remove with a towel.