KirkII Posted November 11, 2007 Share Posted November 11, 2007 2002 RX300, 105000 mi. Moving to Denver where the regular unlead octane is 85 (R+M/2). Do you think altitude makes that much difference to octane requirement? Anyone know what Lexus says? Manual says to use 87 (R+R/2). Thanks! Quote Link to comment Share on other sites More sharing options...
edbro Posted November 12, 2007 Share Posted November 12, 2007 2002 RX300, 105000 mi. Moving to Denver where the regular unlead octane is 85 (R+M/2). Do you think altitude makes that much difference to octane requirement? Anyone know what Lexus says? Manual says to use 87 (R+R/2). Thanks! We use 86 here in Albuquerque where the altitude is about 5500 feet. No problems. Quote Link to comment Share on other sites More sharing options...
KirkII Posted November 13, 2007 Author Share Posted November 13, 2007 2002 RX300, 105000 mi. Moving to Denver where the regular unlead octane is 85 (R+M/2). Do you think altitude makes that much difference to octane requirement? Anyone know what Lexus says? Manual says to use 87 (R+R/2). Thanks! We use 86 here in Albuquerque where the altitude is about 5500 feet. No problems. Thanks. Quote Link to comment Share on other sites More sharing options...
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