what gas (petrol) to use?
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#5
Should use the highest octane available, make sure your fuel map is selected for it I just noticed my car's map selector plug disappeared...was running in 'low power' mode for god knows how long. Your car is an 89' so it should have this option. Sometimes I even toss in a 1-gallon of xylene paint thinner for MORE octane on highway road trips. Lots of goodies you can buy to if you want to squeeze every bit of mpg out, I'm a huge fan of Archoil products, lots of gains there.
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Yes stay away from ethanol fuels! Up in Canada 94octane is ethanol free the rest are contaminated.
fuel timing plug:
https://www.jaguarforums.com/forum/x...lector-228280/
Its just a wire loop that plugs into the end, and selects advanced timing.
fuel timing plug:
https://www.jaguarforums.com/forum/x...lector-228280/
Its just a wire loop that plugs into the end, and selects advanced timing.
#11
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But, you might not have it at all. It was a feature on the cars with Marelli ignition....which was introduced part way thru the 1989 model year (USA model yer, that is). If you have the earlier Lucas ignition you won't have the 'mapping' choice.
As for ethanol, which has been mentioned, well, that can be a touchy subject. I've been running my old Jags on E10 for decades with no problem. FWIW
Cheers
DD
#12
Probably best described as a 'timing map' rather than fuel map, as it alter timing, not fueling, as I recall
But, you might not have it at all. It was a feature on the cars with Marelli ignition....which was introduced part way thru the 1989 model year (USA model yer, that is). If you have the earlier Lucas ignition you won't have the 'mapping' choice.
As for ethanol, which has been mentioned, well, that can be a touchy subject. I've been running my old Jags on E10 for decades with no problem. FWIW
Cheers
DD
But, you might not have it at all. It was a feature on the cars with Marelli ignition....which was introduced part way thru the 1989 model year (USA model yer, that is). If you have the earlier Lucas ignition you won't have the 'mapping' choice.
As for ethanol, which has been mentioned, well, that can be a touchy subject. I've been running my old Jags on E10 for decades with no problem. FWIW
Cheers
DD
Regarding ethanol... There was a hate hype here, as all our fuels have at least 5% ethanol now. I always fill in e10 as I have no worry driving it. People would be driving cars, running it on E10 and claiming that the E10 destroyed the engine. It would - not kidding - cause cambelts to snap, ignition coils to die, clutches burn out... You know, impossible things. I'd have no worry driving my V12 on E10 or more...
Last edited by Daim; 02-04-2020 at 09:37 PM.
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It was during the USA 1989 model year, maybe half way through, at VIN 156xxx or something like that.
Regarding ethanol... There was a hate hype here, as all our fuels have at least 5% ethanol now. I always fill in e10 as I have no worry driving it. People would be driving cars, running it on E10 and claiming that the E10 destroyed the engine. It would - not kidding - cause cambelts to snap, ignition coils to die, clutches burn out... You know, impossible things. I'd have no worry driving my V12 on E10 or more...
FWIW, my 1988 Jag owners manual explicitly says E10 is OK.
Cheers
DD
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Daim (02-05-2020)
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