Blackstone Laboratories Oil Analysis Reports
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slartibartfast (06-28-2018)
#317
#318
Registered Member
Here is automatic transmission fluid test. I did 3 times a single drain and refill (not flush) at 45K miles, at 66 K, and 78K.
Looks like it works, no issues so far
ATF test
Looks like it works, no issues so far
ATF test
#324
Registered Member
iTrader: (3)
Used Oil Analysis - Mobil 1 0W40
Just out of curiosity, I decided to get a used oil analysis from Blackstone Labs on the Mobil 1 0W40 full synthetic oil I have been running in my G37. The results look great. The viscosity is fine and I was recommended an OCI of 9,000 miles. Hopefully this serves to relieve any worries that one might have about using 0w40 instead of the Infiniti recommended 5w30.
#326
Registered Member
iTrader: (2)
My Mobil1 0w40 UOA reference post.
The link above is my analysis on the same weight. I also had good result, also less engine ticking, but I burned a bit of oil and now switched back to 5w30. I wanted to try the 0w40 because from everyone else's report it flows similar to a 30 weight despite it being a 40 and the 0 helped with getting oil circulated around quicker initially, which might be a reason for the quieter noise?
The link above is my analysis on the same weight. I also had good result, also less engine ticking, but I burned a bit of oil and now switched back to 5w30. I wanted to try the 0w40 because from everyone else's report it flows similar to a 30 weight despite it being a 40 and the 0 helped with getting oil circulated around quicker initially, which might be a reason for the quieter noise?
#327
Registered Member
iTrader: (3)
I tend to get really obsessed with things when there's a discrepancy. There was, and probably still is, a lot of debate between 5w30 vs 0w40 and which one is better for engine longevity. I found countless threads that argued that the 0w40 was superior than 5w30. Reasons for preferring 0w40 ranged from "improved shear resistance" to "they use it in the GTR". There's also quite a bit of anecdotal evidence out there advocating that the engine runs smoother and less noisy after switching to 0w40. This thread is what finally convinced me to switch over. https://www.myg37.com/forums/engine-...oncerns-2.html FWIW I have been using 0w40 for the last 15,000 miles.
#330
Registered Member
iTrader: (2)
I usually check my oil once a week on weekend mornings, and I had to add a quart during my usage with 0w40 both Mobil 1 and Castrol Edge, around 3000 mile mark. I switched back to 5w30 and I haven't had to add any oil as or yet, but I haven't reached 3000 miles yet.