![]() ![]() ![]() You said 5w30 conventional will keep the warranty intact, so I'm sure they would allow for 5w30 synthetic which is what I would use for that turbo. I would not feel comfortable running a 0w20 in a turbo application. And then we'll see how that works out for shearing, and fuel dilution, but that is next summer's exercise. Juke will stay at 5w/10w-30 semi-syn the rest of summer, and come winter will get 5w-30 Ultra which has both a good pourpoint and is on the light side of a 30w. Motor oil - Wikipedia, the free encyclopedia 5W30 is the recommended oil for best fuel economy and is what Subaru puts in the car from the factory. They have on all past UOAs done on the old Juke, but no mention of whether or not a 5.91 cSt is a disaster or what. The first number designates the viscosity of the oil cold and the second the viscosity of the oil at normal operating temperatures. Interestingly, in neither comment section of the Blackstone UOA did the author comment on the oil viscosity. Haven't gone back to sample the Altima, it has 19K on it now, but I'll get one here in a week and know what it is doing to 5w-30 semi-syn because that's what I've been using in it. Im trying to find a short term solution to replacing Fox. Somebodys 5wt could be heavier than somebody elses 7.5wt. Even weights arent equal to each other between brands. Cst is more relevant than the weight which is 20 in this case. I know the Juke destroys oil, because I UOAed the last one several times as I increased oil weights and quality trying to keep it from shearing it down. '20' doesnt have much to do with the cst number. Just finished the second oil change on the Juke after a 2200 mile roadtrip, and got a sample of that to see what it looks like, figuring the all road trip will have at least stopped the fuel dilution from showing up. dollars: 0.067 in the U.S., 0.117 in Brazil and 0.206 in Germany. The costs shown are calculated using typical 2020 costs per kilowatt-hour (kWh) for industrial power users, expressed in U.S. In engineering, centistokes (cSt) are usually used. The extent of the savings of using three-screw pumps on highly viscous oil varies depending on the local cost of electrical power. However, the commonly used measure is the stokes (or stoke) where 1 St 10 m/s. The Juke also suffered from 1.5% fuel dilution, which makes sense because those break-in miles were all around town stuff, maybe 2 hard canyon runs on it, that was it. Kinematic viscosity can be obtained by dividing the absolute viscosity of a fluid with its mass density. Now I've only been doing UOAs for a couple years now, but I know I've NEVER seen numbers this low, even for all the 5w-20 I've used in Fords and Camry and whatnot. The Altima came back at 6.42 cSt, the Juke at 5.91. These are both factory fill cSt viscositys, so I assume they had put a 0w-20 weight as FF. On the juke this has changed since 2013, where my factory manual for that one (same engine) recommended 5w-30 only.Īnyway, the Juke had 1426 miles on it, the Altima 660. 3,4 It depicts the required minimum (rated) viscosity v 1 as a function of bearing dimension and shaft speed. So I received back UOA's from Blackstone on 2 factory fills, a 2015 Juke (1.6L DI, turbo and egr) and a 2015 Altima (2.5L 4cyl port injected no egr).įactory recommendation for both is 0w-20 for mileage, but 5w-30 conventional (mineral) old will keep warranty intact. Figure 2 shows a graph from SKF that is time-tested and widely applicable.
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