Here is the latest results of independent testing the RX can with others. We see the same results with JLT and Moroso:
Test Results
- I'll summarize the test to date. The first phase was to test the UPR vs the RX catch cans on a 5.0, both base models, with the UPR first in line and RX installed to catch anything the UPR missed. Those first phase results were: UPR - 17cc, RX - 67cc. The 'first in line' UPR caught 20% of the total volume. See post 37 in this thread for more details. The cans were cleaned and reinstalled in reverse order for phase 2, RX first and then UPR.
Phase 2 Test Results
- The Weather has been average northern Ohio spring weather. Some rain, fog, cool nights, warm and hot days.
- Driving has been about the same through both phases. I good mix of rural roads, some small towns, highways, and approximately 40% of the miles on interstates at 65 - 80mph. Mostly average style driving, with a few very heavy accelerations mixed in. A little heavy hauling, and no towing.
- What they caught this time might have been predicted by some (after the results of phase 1). RX was first in line, with the UPR after it to catch anything the RX might miss.
The combined volume of gunk was half of that caught in the first phase. The first phase had some cold weather which accounted for more water in the mix and the higher volume.
The contents from the RX can was mostly oil/fuel, and had a strong chemical/solvent smell again. It caught 35.5cc total which is approximately 7 1/8 tsp.
The UPR can caught about the same mix of oil/fuel, but didn't smell quite as strong. Halfway through this phase, Joe@UPR asked me to remove the mesh on the exit side of the UPR can. I did that, but noticed no difference in what it was catching. But since it was second in line, and there was little to catch, that's understandable. The UPR can caught 1.75cc total which is approximately 1/3 tsp. With so little collecting this time, I monitored the contents of the UPR can but didn't empty it until the end of the test.
- Phase 2 Totals:
RX - 35.5cc
UPR - 1.75cc
- Other tidbits include the 'first in line' RX can caught 95% of the total volume. The exit hoses were very clean from both cans. The last few tanks of gas have produced slightly higher than my normal MPGs, but it's too early to tell on that.
We urge all to do the test in reverse as well to be fair and accurate.