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Changed oil, Ravenol FullSynth Turbo VST 5W-40 #5163813 07/17/19 08:30 PM
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NotEnoughSpeed Offline OP
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Hi guys, I have a 2011 BMW 535i, in which I have been using Pentosin Pento High Performance 5W-30 oil and Hengst oil filters since I bought it. This time, I tried Ravenol Ravenol FullSynth Turbo VST 5W-40 oil (and another Hengst filter). Now I’ve done 3 oil changes with the Pentosin, but this time, I noticed the engine is so much quieter idling. I know it could be a placebo, but I don’t remember it sounding this smooth with the Pentosin oil. So far, engine sounds the best it has ever sounded.

Re: Changed oil, Ravenol FullSynth Turbo VST 5W-40 [Re: NotEnoughSpeed] #5163875 07/17/19 09:52 PM
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benjy Offline
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generally higher viscosity oils quiet things, but ravenol like redline is likely a better oil IMO. in the heat of florida a 10W-xx will do better needing less viscosity improvers + even a 15W-xx in summers heat!! oils blended from true synthetic PAO + Esters use little if any viscosity improvers + although better even very light real synthetics will burn off faster.

Re: Changed oil, Ravenol FullSynth Turbo VST 5W-40 [Re: NotEnoughSpeed] #5164021 07/18/19 06:14 AM
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BMWTurboDzl Offline
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Slightly heavier weight is causing more drag on components.


“It took untold generations to get you where you are. A little gratitude might be in order. If you’re going to insist on bending the world to your way, you better have your reasons.”

435i
Re: Changed oil, Ravenol FullSynth Turbo VST 5W-40 [Re: BMWTurboDzl] #5164960 07/19/19 07:02 AM
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NotEnoughSpeed Offline OP
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Originally Posted by BMWTurboDzl
Slightly heavier weight is causing more drag on components.


I have been driving on this new weight for a few days. I believe I can feel what you are talking about.

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