GreaseMaster and Rusteco Application Process
GreaseMaster, Rusteco and Comparison

Greasy Transmission Inspection Plate
For this part, I diluted GreaseMaster to 400:1 to see how it would work at that level of dilution. I also took the opportunity to test it compared to the only similar product I could find on the market: Oil Eater. I also diluted Oil Eater to their recommended dilution level which is 1:1. Click image to enlarge.

Comparison Test
Although Oil Eater is nontoxic and biodegradable, it isn’t nearly as friendly to surfaces such as aluminum, plastic, paint, fabrics and skin as GreaseMaster (If it matters to you, it did seem to remove very small amounts of rust if left on long enough). In fact, it is recommended that Oil Eater shouldn’t be allowed to remain in contact with these surfaces for very long. It is also not nearly as safe for the environment, people or animals. Once diluted, the cost of Oil Eater is a little over three cents an ounce as compared to GreaseMaster at just over a penny. From someone who had tested both products separately, I was told that they thought it was as good at removing dirt and grease and such. The test Patty and I performed, however, showed there was indeed a definite difference. GreaseMaster, while being both cheaper and safer was also more effective (at the 400:1 dilution). Not only did it do a better job removing the grease (more than four times the better job, in fact), it did it in half the time with half the volume sprayed on. I also discovered something interesting about GreaseMaster during this test. Once the excess was wiped off the grease spot, what was left in the grease continued to work and by using a dry, grease free portion of the rag, it continued to lift grease (in fact, after the initial wipe, it had done worse than Oil Eater) until the entire area the GreaseMaster covered was grease free (unlike Oil Eater). As a side note, it was also easier and faster to wash off and it washed off completely, even when the GreaseMaster was diluted at a 2:1 ratio. Click image to enlarge.

Clean Transmission Inspection Plate
This is the result of using GreaseMaster at a 400:1 ratio, sprayed all over and wiped off with rags. Once dry. I couldn’t tell there was any residue left by touch, but if you wanted to know how easily it was removed from this application, all I did was use a wet rag to wipe it off. It came off completely and easily (which is necessary for the next step, the application of Rusteco). Click image to enlarge.

Rusteco and Rust Removed
The inspection plate, while clean, is pretty rusty from 10 years of use and environmental exposure. Because of its size and the fact that the rust isn’t very thick, I’ll be using the Gel. It took several applications, but to be fair the first application I put on was thin. For the next two applications I used a thick coating and scrubbed the rust off with first a scouring pad and then a steel wire brush. In fact, most of the rust was removed with the second application. The third was only used to remove some stubborn deposits and was only applied in small spots. The results were worth the effort. The part was completely cleaned of rust. The dark spots on the plate were a combination of lighting and stains left by the Gel that were removed with another application of the Gel and scrubbing (I didn’t have the opportunity to photo it for this article). Click image to enlarge.