This is the first oil analysis I've done on my '05 Elise (2ZZ-GE). It's from ALS Tribology. I have been doing yearly oil changes which resulted in around 3000 miles on the oil last year. The previous change was also M1 0w-40. The only concern from ALS was that the viscosity was low.
I've been interested to see how this oil would perform due to the direct follower on the high speed cam lobes. I am 100% street driving and have removed the oil cooler loop which is known to over-cool the oil. Even then, I rarely even see over 95C oil temps in the pan. I wait until the oil is up over 80C before revving over the cam switch over point. That said, the engine sees 8000rpm at least once or twice on most drives so I don't baby it once things are warm.
I've been interested to see how this oil would perform due to the direct follower on the high speed cam lobes. I am 100% street driving and have removed the oil cooler loop which is known to over-cool the oil. Even then, I rarely even see over 95C oil temps in the pan. I wait until the oil is up over 80C before revving over the cam switch over point. That said, the engine sees 8000rpm at least once or twice on most drives so I don't baby it once things are warm.