Trainman Posted March 22, 2005 Share Posted March 22, 2005 Just wondering what the thoughts were about the use of premium gas on the 01-04 Pathfinders. I use regular but am I risking any damage to the motor or emission system? I figure I will have reduced power but what else? Thanks, Will Link to comment Share on other sites More sharing options...
Trialsin26 Posted March 22, 2005 Share Posted March 22, 2005 When I first bought my PF I used 85 oct but I got a lot of pinging with my 5 speed. It may not be as noticeable if you have an auto. But due to the high compression engine I only use 93 oct since week two of owning my Pathfinder. Link to comment Share on other sites More sharing options...
hardwaretoad Posted March 23, 2005 Share Posted March 23, 2005 What elevation is Memphis, trial? I used 85 octane in my '87SE, but that was at over 5,000ft. in Nevada. You can get away with it because of less oxygen. Matter of fact 85 is the "regular" up there. Here in Az. (165 ft.) I'm back to 87 octane... Link to comment Share on other sites More sharing options...
2001pathfinderLE Posted March 23, 2005 Share Posted March 23, 2005 i always use 93 or sometimes if im in a good mood ill put in 94 here in jersey. Link to comment Share on other sites More sharing options...
Trainman Posted March 23, 2005 Author Share Posted March 23, 2005 (edited) In my neck of Canada, we have 87, 89 and 91 octane gas. The difference between 87 and 91 is $0.10/liter or $0.38/ US gallon (or about $8.00 for a full tank). Can add up quick. I have not noticed any pinging, even when pushing it hard at 110 km/hr up a 6% grade. So, is there potential for long term damage? (Our Sienna is supposed to take premium as well but again we do not notice any difference). Thanks for all the input. Will PS our elevation is 600 m (2,000 ft) with highway passes up to 1,700 m (5,600 ft). Edited March 23, 2005 by Trainman Link to comment Share on other sites More sharing options...
Trialsin26 Posted March 23, 2005 Share Posted March 23, 2005 hardware, I don't know my elevation but I can't be that high. I notice the ping early and I want to get a lot of miles on my pf so I'm not going to chance it. I think it also depends on what kind of engine you have and the 3.5l are a higher compression I think??? Link to comment Share on other sites More sharing options...
90seven Posted March 24, 2005 Share Posted March 24, 2005 (edited) What elevation is Memphis, trial? I used 85 octane in my '87SE, but that was at over 5,000ft. in Nevada. You can get away with it because of less oxygen. Matter of fact 85 is the "regular" up there. Here in Az. (165 ft.) I'm back to 87 octane... Nevada's lowest octane rating is now 87. What's 3.5I, is that an inline-6 or Fuel Injected? Edited March 24, 2005 by 90seven Link to comment Share on other sites More sharing options...
big_johnson Posted March 24, 2005 Share Posted March 24, 2005 He wrote 3.5 L, not I. I use 85 octane in my 3.3 here around denver, but 3.3's require lower octane to begin with. If you're not experiencing any pinging/knocking when you get on the gas, then I don't think the engine is being harmed. So I'd say keep doing what you're doing, and just up the octane if you start hearing pinging Link to comment Share on other sites More sharing options...
90seven Posted March 24, 2005 Share Posted March 24, 2005 He wrote 3.5 L, not I. I use 85 octane in my 3.3 here around denver, but 3.3's require lower octane to begin with. If you're not experiencing any pinging/knocking when you get on the gas, then I don't think the engine is being harmed. So I'd say keep doing what you're doing, and just up the octane if you start hearing pinging Oops! Link to comment Share on other sites More sharing options...
taff Posted March 25, 2005 Share Posted March 25, 2005 Here are some interesting articles regarding Octane. http://c2.com/cgi/wiki?OctaneIsControlNotPower http://www.truckpulls.com/fuel_octane_faq.htm Link to comment Share on other sites More sharing options...
Runnerman Posted March 25, 2005 Share Posted March 25, 2005 We use 87 Octane in the pathy it has the 3.5L Link to comment Share on other sites More sharing options...
Arthur92XE Posted March 29, 2005 Share Posted March 29, 2005 I USE 87 OCTANE ON MY 92PATH AND ONCE A MONTH I ALSO ADD FUEL INJECTOR CLEANER TO BE ON THE SAFE SIDE. Link to comment Share on other sites More sharing options...
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