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Engine oil for 3 series(hello from SG)
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<blockquote data-quote="alantiong" data-source="post: 711146" data-attributes="member: 19754"><p>guys.. i would stick to max at 40w.. 30w would be just fine.</p><p></p><p>50w is out of question... why would 50 give a better lubrication for our weather..? i am surprised that you guys actually think that 50w protects better.. for a turbo car... you would like to have lots of oil passing thru the turbo bearing... thus 30w.. is just fine.</p><p></p><p>on the other hand.. 50w shou;d be used only and only if you are loosing some compression. otherwise.. no benefit..</p><p></p><p>for 30deg C difference... 50w will not be anything close to 40w viscosity. by the way.. the engine/oil/coolant temperature run at the same temperature here in sunny malaysia or at 0deg where canuck (canadian) grewed up... there is something called thermostat! so re-think when some mechanic that never finish middle school tells you about "we are in hot weather country.. so engine run hotter!"</p><p></p><p>sorry to sound blunt.. but guys.. please do not give a half assed advice... </p><p></p><p></p><p><span style="color: rgb(40,40,40)">4. Castrol says "</span><a href="http://magnatec.castrol.com/en/the-problem.html" target="_blank">Up to 75% of engine wear happens during warm-up</a><span style="color: rgb(40,40,40)">" so the thinner the oil, the faster the oil reaches optimal temperature and the faster it reaches the top of the engine to lubricate engine components. So for a while it seems the thinner the oil the better but remember once engine heated up,</span><strong> <span style="font-family: 'helvetica'">AGREED and agreed!</span></strong></p><p></p><p><strong><span style="color: #ff0000"><span style="font-family: 'helvetica'">"it might be beyond the optimal operating temperature of the thin viscosity oil and fail to protect the engine." this is depending of type of oil.</span></span><span style="color: #0000ff"><span style="font-family: 'helvetica'"> if this happen.. its your oil pump that has failed. thinner oil actually disperse heat faster at radiator and thicker oil disperse slower.</span></span></strong></p></blockquote><p></p>
[QUOTE="alantiong, post: 711146, member: 19754"] guys.. i would stick to max at 40w.. 30w would be just fine. 50w is out of question... why would 50 give a better lubrication for our weather..? i am surprised that you guys actually think that 50w protects better.. for a turbo car... you would like to have lots of oil passing thru the turbo bearing... thus 30w.. is just fine. on the other hand.. 50w shou;d be used only and only if you are loosing some compression. otherwise.. no benefit.. for 30deg C difference... 50w will not be anything close to 40w viscosity. by the way.. the engine/oil/coolant temperature run at the same temperature here in sunny malaysia or at 0deg where canuck (canadian) grewed up... there is something called thermostat! so re-think when some mechanic that never finish middle school tells you about "we are in hot weather country.. so engine run hotter!" sorry to sound blunt.. but guys.. please do not give a half assed advice... [COLOR=rgb(40,40,40)]4. Castrol says "[/COLOR][URL="http://magnatec.castrol.com/en/the-problem.html"]Up to 75% of engine wear happens during warm-up[/URL][COLOR=rgb(40,40,40)]" so the thinner the oil, the faster the oil reaches optimal temperature and the faster it reaches the top of the engine to lubricate engine components. So for a while it seems the thinner the oil the better but remember once engine heated up,[/COLOR][B][COLOR=#0000ff][FONT=helvetica] [/FONT][/COLOR][FONT=helvetica]AGREED and agreed![/FONT][/B] [B][COLOR=#ff0000][FONT=helvetica]"it might be beyond the optimal operating temperature of the thin viscosity oil and fail to protect the engine." this is depending of type of oil.[/FONT][/COLOR][FONT=helvetica][/FONT][COLOR=#0000ff][FONT=helvetica] if this happen.. its your oil pump that has failed. thinner oil actually disperse heat faster at radiator and thicker oil disperse slower.[/FONT][/COLOR][FONT=helvetica][/FONT][/B] [/QUOTE]
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