Shell Rotella T Synthetic full analysis
Over the year I have spent on this forum there has been about 1,743 threads about oil. When I first bought my bike I researched the technical specifications of all the top oils and decided on Rotella T 5w-40 synthetic for my bike due to the combination of price and performance. It has one of the highest flash points, lowest pour points, fewest VII's, etc. I put just over 4000 miles on a sample and sent it in for analysis. I decided that if it performed well I would continue using it and if it didn't that I would keep looking. I got the analysis back today and it performed very well. The viscosity has started to break down at 4000 miles it is now equivalent to a 30w oil down from a 40w. The analysis people seemed pleasantly surprised by how well it was holding up for the amount of miles. For comparison hooliganbiketech.net has posted up before and after analysis of a couple 'top' motorcycle oils and they both suffered slightly larger viscosity drops. The best measure of Viscosity is the V100C. The Rotella dropped from 15.7 to 10.13 over 4100 miles. The Mobile 1 15w-50 dropped from 18.3 to 12.5 (4300 miles), and the Repsol YPF dropped from 16.48 to 10.44 (5000 miles). So all three performed almost equally. The Mobile 1 has a higher starting viscosity but breaks down just as quickly. The higher starting point might make it a good track oil but it is a higher weight than is recommended for my bike, especially here in Iowa with the cold nights. My bike was showing a little high on Aluminum content but the bike was fairly new so might still be breaking in. The Al content was actually much lower than what was showing up in the other oils in the hooligan samples though and his bike has more miles than mine. Maybe he rides harder than I do? Maybe the Rotella just protects better? I don't know but even though my Al content was high it was only about 1/4 of what he got in his oil so something was coming apart in his bike.
I couldn't figure out how to post my analysis report and still be able to delete my personal info without just making it a screen shot so it is in three pieces. Sorry.
I included the technical specs of the Rotella for the 'before' numbers.
If it has wheels, I've crashed it, and some things that don't razor scooter, skate board, roller skates, roller blades, skis, snowmobile, card board box on stairs, giant inner tube, nissan sentra, dirtbike, lawn tractor (wheelied it over), grandmas bread tray on stairs, kayak, canoe, rubber raft, bicycle, wake board, kneeboard, waterskis, tobaggan (plowed a pine tree), horses, ATV's