Last post on May 30, 2009 at 2:06 PM
You are in the Jaguar X-Type
What is this discussion about?
Jaguar X-Type, Sedan, Wagon
Jan 17, 2007 (4:17 pm)
I do add a quality fuel inj. cleaner to tank every 10,000 miles, and regular oil changes at 3-4,000 miles.
with a 7qt oil pan that is a complete waste of money and oil. I have gone every 10k between oil and filter with Mobil1 and the engine has 95k and still gets 32 hiwy mpg 60mph and usually a 28 combined overall
as far as the gas goes I would stick with atleast 91 octane. these engines have a type of vvt system that will actually be deactivated if the ecu senses too low an octane of fuel. if the butterflies in the intake do not open and close often enough they will stick and become useless and the engine will run like crap
#7 of 8 Re: Jaguar X-Type: What's the Best Gasoline to Use? [Mr_Shiftright]
May 30, 2009 (1:18 pm)
I just bought my 2004 Xtype 3.0 and the owners manual for US cars calls for 91 octane or higher. Anything less will not only void any warranty you may have, but it will start causing engine troubles. It might cost a little extra, but if you never have to see the repair bill on a jag, then it is worth it. They are a bit pricey. Just look at the $400 "kitty cat" on the hood, and you will see what i mean.
#8 of 8 Re: Jaguar X-Type: What's the Best Gasoline to Use? [dfciii]
by Mr_Shiftright HOST
May 30, 2009 (2:06 pm)
The car's computer can adjust the engine time to accept a lower octane fuel. That's what the knock sensor is for. They can't void your warranty for that. If they claimed the gas caused the engine damage, they'd have to explain why the computer failed to protect the engine as it should have. Further, they'd have to prove the engine damage was the direct result of using a couple points lower octane. Lotsa luck proving that. It's not like you're trying to put diesel fuel in there or racing gas.
You can't harm your engine using pump gas, say 87 or 89. What changes is your performance. The car will be more sluggish and you'll probably press on the gas more, thus negating the money you saved using lower octane!