T.Another criteria for choosing viscosity is the use. Or go with 5-40 to be safe? motul by the way places as specific for bmws a 5-40 oil. Now if I could easily find the motul bmw specific ll04 5-40 all my problems would have been solved,but its rare and I have to shop online from another country.Best was united kingdom but with Brexit not anymore.ĭoes ambient temps play a major role to choosing the viscosity? Our temps is above 5 C in winter and above 35 C during summer.sould I consider outside temp or engine temp is all that matters because 5-30s have molecules that strengthen the oil and becomes more viscous and doesn't get much thinner at high temps? now luckily my engine takes both.but which is better for my engine considering that our fuel in Europe are with less ethanol and low saps.įirst of all my engine doesn't have a leak problem.doesn't burn oil.I change every 6 months maybe thats why.So my first question is. hc from now and on.maybe they have some different recipe but its hc.no much ester/pao here anymore too.from analysis just some 1-5% ester but all of my friends like motul.actually there arent any real synthetics anymore ,except the us ones,redline,amsoil,torco,bardahl.but there were complains with them.maybe a bit heavy mixure for our engines these pao/ester mix.Īnd this is the question.which one for my engine? i want to choose one and for the rest of the engine's life not to change.i have 120.000 km.i have to choose between the x-clean series which is ll04 norm and the x-cess series which is ll01. and recipe changed ,mot mush ester/pao anymore.so lets go to motul.100% synthetic? no.thats not the case. Now i want to try another brand.i wanted mobil ,but no 5-30 approval anymore.i know, it doesn't ,matter but i want to go with the book. higher viscosity and flash point and lspi protection ,sn plus which is not meant to be useful for my engine ,its for turbocharged ,but a good protection could be useful. this year i changed to castrol edge 5-30 M. I have conclude some info about oils and I would like to share it with you.Feel free to contribute,argue e.tc.įrom new 2010,i used to go with dealers oils,bmw-castrol 5-30 until 2015 and bmw-shell until 2017.then i moved to castrol again titanium edge 5-30 because with the bmw-shell was disappointed. I drive a bmw 1600 gasoline e87 natural aspired.
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