Here's the latest UOA from my Civic. Now I am worried about the Si and Al wear. I've checked the airbox, and when fully installed it seems to be well sealed, but upon closer inspection I found some slop in the rubber boot which mates the intake pipe to the MAF sensor on the lid of the airbox.
Artem or anybody else with an R18 Civic, could you check yours for me? My rubber boot has radial play with the MAF housing such that two layers of electrical tape were required to tighten it up. The boot seems to be a face seal rather than a radial seal, so I'm not sure the electrical tape fix is doing much good. When I get the chance (hopefully this weekend) I'll remove the airbox and see if I can do a more thorough analysis.
Anyway, here's the report. I'm actually quite pleased with how the Idemitsu 0w20 held up. Not much shearing at all, though the VI dropped to a merely "good" 174. With the accuracy limits of the viscosity measurements, I suspect used oil VI measurements are quite volatile.
Idemitsu 0w20 SM is in the car again. I bought it from my local Subaru dealer (Morries) and the interesting thing is they'd just gotten a pretty big shipment from their supplier, and it was all still API SM. I wonder when the rumored switch to SN will actually happen and what changes we'll see in the oil.
Artem or anybody else with an R18 Civic, could you check yours for me? My rubber boot has radial play with the MAF housing such that two layers of electrical tape were required to tighten it up. The boot seems to be a face seal rather than a radial seal, so I'm not sure the electrical tape fix is doing much good. When I get the chance (hopefully this weekend) I'll remove the airbox and see if I can do a more thorough analysis.
Anyway, here's the report. I'm actually quite pleased with how the Idemitsu 0w20 held up. Not much shearing at all, though the VI dropped to a merely "good" 174. With the accuracy limits of the viscosity measurements, I suspect used oil VI measurements are quite volatile.
Idemitsu 0w20 SM is in the car again. I bought it from my local Subaru dealer (Morries) and the interesting thing is they'd just gotten a pretty big shipment from their supplier, and it was all still API SM. I wonder when the rumored switch to SN will actually happen and what changes we'll see in the oil.