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    Thread: what's the difference between 5-w30 vs 5-w20?

    1. 12-22-2004 07:57 PM #1
      My buddy with a civic want's to know what's the diffence between 5-w30 and 5-w20? He's stranded on his way to New York.

      I know Civics suck ass, but he doesn't know any better.


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      12-22-2004 07:59 PM #2
      5w-30 stays 'thicker' at operating temp than 5w-20. The first half is a viscosity rating for cold operation and the second is a rating for warm temp.

    3. Member Batan's Avatar
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      12-22-2004 08:01 PM #3
      In A2 context they are the same - they're both wrong!

    4. 12-22-2004 08:01 PM #4
      So if he's stuck in a snow storm tonight driving on his way to NY city, what should he get? His oil cap says 5-w20, but the service station he's at only has 5-w30?

      I'm talking to him on his cell phone right now.


    5. 12-22-2004 08:02 PM #5
      5w-30 is thicker than 5w-20 it has a higher viscositiy(i cant spell) and the 5w-20 is thiner better for winter beacuse if its really cold it wont turn as thick so it will be easier to start your car and will lubercate your engine better on start up but will break down faster because it is thiner and since it is thiner it will get thru things easier i think.

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      12-22-2004 08:04 PM #6
      30 will be thicker. Oil pressure will go up a bit. if its got some good miles on it 30 shouldnt really phase it for a while...But he shouldnt go poundin on it up to (or near even) redline. Keep moderate RPM and then get an oil change and he should be good for a temp fix. Jsut watch for oil lights. Id be surprised if he gets one going to 30 from 20wt tho...Unless its REAL:LY cold and thats the 'really cold' oil rating.

    7. 12-22-2004 08:04 PM #7
      and if you mix oil it wont matter just change it sooner it wont matter.

      put 5-w20 in it for the winter but then again its not a bid differnece and its a honda so who cares


    8. 12-22-2004 08:11 PM #8
      Awesome .. thanks guys. It's a 2004 Civic he's driving by the way but all in all, if he has to top up his oil then a little 5-w30 shouldn't hurt.

      Thanks


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      12-22-2004 08:13 PM #9
      Ya shouldnt be too big of a deal. Tell him to take it easy on the revs...He may hear an oil light (itll be a high pressure warning) and back off of it or shift. Then just have the oil changed in a day or two if he starts to hear that. The cold weather is all that would worry me. The 5w-30 or even 10-40 wouldnt phase it when its warm outside.

    10. Member Eric D's Avatar
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      12-22-2004 08:17 PM #10
      The original Dub and Dubber.
      Manche VWs sind einfach schneller als andere.

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