Volvo RWD 200 Forum

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Gas question 200 1983

posted by  Breadman on  Fri Dec 13 12:13 CST 2002
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last visit: Wed Apr 18 04:46 CST 2012
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My old Volvo mechanic says the 240 was designed for PREMIUM only! I usually put regular, He said that may be causing my high Nox output. I think the owners manual says reg or midgrade is fine. Car runs great on regular. Mileage isnt good so I hate to put premium in...

Any thoughts on fuel grades?
--
'83 244GL 210K








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Gas question 200 1983

uid 8749's pic
posted by  signalius on  Fri Dec 13 17:41 CST 2002
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last visit: Mon Dec 30 07:34 CST 2013
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I use only premium after discovering improved mileage with it. You might try it-- In my case it gives me about 40 extra miles per tank, slightly offsetting the cost.
--
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Gas question 200 1983

posted by  t-bone on  Fri Dec 13 14:01 CST 2002
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last visit: Tue Sep 21 04:24 CST 2010
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U.S. spec B21F B23F B230F non-turbo engines do not require Premium fuel. I use mid-grade in all my Bricks with the exception of the Turbos. High test is required for those beasts. As for high NOX problems I'd suspect vacuum leaks, timing or a bad cat as more likely culprits.
Regular or Mid-grade fuel should not be a problem for your Brick.








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Gas question 200 1983

posted by  chris herbst on  Fri Dec 13 13:47 CST 2002
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last visit: Mon Oct 20 20:32 CST 2014
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He's right about NOx output. But there are other things that can affect it as well. Octane is one of those things. But you can drive on 87 octane.
--
Chris Herbst, in Wisconsin.







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