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The BMW Range
5 Series
E39
Which Lubricant/Engine Oil to use?
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<blockquote data-quote="turbology" data-source="post: 363592" data-attributes="member: 10223"><p>1 and 2 are good product, with 2 being more "far superior" because it meet the MB229.5 & LL-01 requirement.</p><p>I will pick product #1 because is a 5W-40 oil.</p><p>Product 2 is a little "weird" because I rarely see a 5W-30 oil that pass MB229.5 requirement. You need to double sure before using. If is true, is no doubt a rare find. But in same case, it should meet a ACEA A5 requirement too since is weight 30.... hmm... and why #2 only a SL oil instead of SM oil ?</p><p></p><p></p><p></p><p></p><p></p><p>Full synthetic oil usually has higher content of cleaning agent. For older engine, a sudden change from regular dino oil to full synthetic might clean away some sludge/dirt that help to seal your engine component and/or weaken the rubber seal and cause it to have oil leak.</p><p>If a car is well maintained, you shouldn't worry about it.</p></blockquote><p></p>
[QUOTE="turbology, post: 363592, member: 10223"] 1 and 2 are good product, with 2 being more "far superior" because it meet the MB229.5 & LL-01 requirement. I will pick product #1 because is a 5W-40 oil. Product 2 is a little "weird" because I rarely see a 5W-30 oil that pass MB229.5 requirement. You need to double sure before using. If is true, is no doubt a rare find. But in same case, it should meet a ACEA A5 requirement too since is weight 30.... hmm... and why #2 only a SL oil instead of SM oil ? Full synthetic oil usually has higher content of cleaning agent. For older engine, a sudden change from regular dino oil to full synthetic might clean away some sludge/dirt that help to seal your engine component and/or weaken the rubber seal and cause it to have oil leak. If a car is well maintained, you shouldn't worry about it. [/QUOTE]
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Which Lubricant/Engine Oil to use?
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