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Regular vs Premium gas - what's the consensus?

14 messages,  Last post on Jul 25, 2007 at 1:13 PM

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What is this discussion about? Land Rover Discovery Series II, Land Rover LR3, Fuel Efficiency (MPG), SUV

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#11 of 14 Re: Does it really matter? [bobw3] by maxcattum Nov 17, 2006 (11:35 am)
Replying to: bobw3 (Nov 17, 2006 6:30 am) Interesting analysis and point taken.   Unfortunately our Discos don't get 23-25 mpg but rather 12-14mpg. Being in California, the delta between regular and premium is more along the $0.35 / gal. So we're looking at $400-500 / year. My question was: can I pocket that without damaging the engine in my 2003 Discovery? (I know I'm ok doing that with my 96 Disco - have been driving on regular for 8 years without problems)   Thanks for all the replies - looks like nobody has had a real bad experience going that route.   MaxCattum Replies to this message: british_rover (Nov 17, 2006 11:52 am)
#12 of 14 Re: Does it really matter? [maxcattum] by british_rover Nov 17, 2006 (11:52 am)
Replying to: maxcattum (Nov 17, 2006 11:35 am) I know plenty of people that put regular in their Discos and the only consequence seems to be a tiny drop in MPG.   Try it out for a few tanks and see how your mpg drops.   The knock sensor will retard timing if necessary so that should protect your engine.   If you are going to tow or use the Disco off-road you should put premium in it as you are straning the engine more.
#13 of 14 Regular vs Premium - the real difference by 55396 Jul 25, 2007 (1:13 pm)
Here is a very good explanation of octane ratings in fuel and how it has nothing to do with the energy content or quality.   http://tech.vtxoa.com/index.php?action=artikel&cat=3&id=22&artlang=en

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