AlexHawk94
Newbie
So I changed oil to mannol 5-50, it's a bit thicker than mobil 10-40. Engine works smoother
Отправлено с моего Redmi Note 3 через Tapatalk
Отправлено с моего Redmi Note 3 через Tapatalk
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We have BMWs here running 10-60 whole year without heaters. But you are right, that may cause problems. 5-50 is two times thicker than 5-30Good luck when winter hits. Hope you have a block heater or at least an oil pan warmer. "clackity clack."
At least it's not 20-50 hahaGood luck when winter hits. Hope you have a block heater or at least an oil pan warmer. "clackity clack."
Hello againJust because uncle Willy runs it in his BMW doesn't mean it's right for your Chevrolet. Especially if the BMW was engineered to run that viscosity, the Chevrolet certainly wasn't. While the bearing clearances may tolerate the thicker goo the oil galleries and passages for the valvetrain haven't worn out and are expecting 5w-30.
More importantly, the thicker the base oil is, the more susceptible it is to cold weather thickening. That's what would worry me, it's like an exponential effect. The "W," while it means "Winter" is only representative an oil's resistance to that thickening effect, it will still turn into honey if it gets cold enough. If you don't care about the engine and want to experiment with it then by all means. I was playing with our dead 350 because I knew I'd be dropping another one in at some point. I'll never forget the conventional 10w-40 I used to lubricate the tailgate latch of our old F150. It was maybe 10 Degrees F outside and that stuff was flowing like thick pancake syrup.
It takes 2 secs to gain max pressure at coldI'm running 5W-40 Valvoline SynPower with the "new" engine in our truck, with a bottle of Restore. No oil consumption and 60psi oil at cold start-up. Hot idle is about 20-25psi. Shop put semi synthetic 10-30 in it and it was 15psi hot idle and that was a bit too low for my liking. Engine seems to like the 5W-40 as I have not noticed any oil consumption yet. So, if yours is going good with that thick oil and it resists turning into goo at the lowest temperature you'll run it at then by all means. Synthetics seem to resist it better than conventionals of the same grade by the same manufacturer. How long does it take to start generating oil pressure after starting it when it's cold?
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