Jaguar Forums - Jaguar Enthusiasts Forum

Jaguar Forums - Jaguar Enthusiasts Forum (https://www.jaguarforums.com/forum/)

- XJ6 & XJ12 Series I, II & III (https://www.jaguarforums.com/forum/xj6-xj12-series-i-ii-iii-16/)

- - Question about octane (https://www.jaguarforums.com/forum/xj6-xj12-series-i-ii-iii-16/question-about-octane-5195/)

Afflict

03-28-2008 02:46 PM

Question about octane

I bought an 80' Jaguar XJ6 recently and was wondering if by any chance anyone knows what's the best octane to use on this car 87, 89, 91 or above? Anyone ever tried using any of the lower grades and/or does it really make a difference?

ken@britishparts.com

03-28-2008 04:09 PM

RE: Question about octane

I've always run the lowest grade in mine. They are low compressiona and run just fine on any old panther piss you throw in there. The higher fuels are cleaner.

Afflict

03-28-2008 05:38 PM

RE: Question about octane

Reason why I ask, is just because in the handbook it says to use 91 (premium).. but if it has low compression then I guess there is no reason to use it or need for it. But I guess I'll try out 87& see what happens, I just don'twant to mess anything up in the engine.

Keith

03-29-2008 01:04 AM

RE: Question about octane

87 is fine, theres no need for the higher octanes, it'll run great.

All times are GMT -5. The time now is 06:34 PM.