Last post on Aug 15, 2013 at 7:54 PM
You are in the Jaguar X-Type
What is this discussion about?
Jaguar X-Type, Sedan
#2331 of 2600 Re: New Jag Owner [nilejewel]
Jan 20, 2006 (8:04 am)
Here's my experience with the proper gas to use: The day we picked up our 2006 X-Type, I asked the sale person if I must use the premium gas, she said (and she has been selling Jaguar, Mercedes, and Volvos for over 7 years) that all their cars receive the regular unleaded gas when sold. I found that a little hard to believe for the really high dollar rides, but took her word anyway and have just turned 4000 miles without any problems using the cheap stuff (I'm knocking on wood as I type this).
#2332 of 2600 Re: New Jag Owner [tom213]
Jan 20, 2006 (8:42 am)
I asked the sale person if I must use the premium gas, she said (and she has been selling Jaguar, Mercedes, and Volvos for over 7 years) that all their cars receive the regular unleaded gas when sold.
That's because they are paying for that tank of gas.
...and have just turned 4000 miles without any problems using the cheap stuff
Keep track of your gas mileage for a few weeks with regular and then switch to premium for a few weeks. You may be suprised at the results.
Personally I trust the manual more than the salesperson when it comes to fuel requirements.
#2333 of 2600 Re: At the dealer again [oldengineer]
Jan 20, 2006 (10:09 am)
Thanks oldengineer, I will try calling Jag directly.
#2334 of 2600 Re: New Jag Owner [robr2]
Jan 20, 2006 (10:32 am)
I like the way my Toyota Highlander manual phrases it:
"Use a minimum of 87 research octane and for the best performance, use 91 or higher research octane."
That is with the 3.3 liter engine(Same as Lexus 330) and IMO a more advanced engine than in my 3.0 Jaguar. Now I don't need great performance to drive to the store or to work so I don't waste the money. On long trips (1500 miles) I have used premium particularly when traversing the mountains of Colorado and Utah.
#2335 of 2600 Premium vs Regular
Jan 20, 2006 (10:48 am)
The main reason why we should use premium gas is to prevent "knocking" in the combustion chamber of our engines. The premium gasoline has stronger resistance to this undesirable chemical reaction where the fuel/air mixture burns so hot and breaks down so quickly that it may be damaging to your engine. Namely, it may literally burn a hole in the top of the piston (I have seen such engines) or may cause the valves to warp and seat incorrectly or you may damage the catalytic converter due to the exhaust gases being too hot. Of course, in today's engines, it would take a lot of running under load and on cheap gasoline to cause such serious damage, but it may happen. Most new engines have anti-knocking sensors, which adjust the fuel/air mixture to prevent knocking and that's why you will see worse fuel economy with regular gas in engines, which require premium. Have you ever heard usually older cars move quickly from green light? You will hear the distinctive knocking from the engine, which indicates this phenomena. Each engine has a different compression ratio and optimum running temperature, not to mention ignition timing and valve opening curvature. The cars that do not need premium gas usually run lower compression ratios and may not be very spirited. Bottom line is this: if the manufacturer recommends premium, stick with premium. Think about it, if you put 12K miles per year and average 20mpg, it will cost you only about $120 more for premium vs. lowest grade of gas. Well worth it for the piece of mind, better performance, not to mention better fuel economy.
#2336 of 2600 Buying new X-type
Jan 21, 2006 (12:37 pm)
Hello, I am new to the forum and thinking about purchasing a 2004-2005 x-type sport. Does anyone know if you can tell whether the car has the sport package and/or premium package by the vin #? Thanks in advance.
#2337 of 2600 Re: New Jag Owner [desertguy]
Jan 21, 2006 (10:31 pm)
I suspect your Jag engine is a bit more sophisticated than the Toyota 3.3. First of all, The Jag 3.0 makes 227 HP, compared to the Toyota 3.3 at 215. Secondly, the Jag engine is very high compression. Jag's 3 liter V6 makes more HP than the current BMW 3 liter in the 325i. My X-Type with the 2.5 Liter runs best and delivers its best fuel economy with 93 octane gas. If I use 92 or ethanol blended premium, my gas mileage drops about 4 -5 mpg. My daughter has 2 Toyota SUVs with v8s - both run ok on regular, but, get a little better fuel economy on premium.
#2338 of 2600 Re: New Jag Owner [oldengineer]
Jan 22, 2006 (8:23 am)
Oldengineer: I will have to disagree with you and I'm no mechanic but I think the Highlander V6 is the more sophisticated engine. Currently it has 230 HP but more importantly, 242 ft.pds of torque. It is also a VVT-i engine (variable valve timing with intelligence) The compression ratio is 10.7 which is high.
The cars are not comparable of course. I would much rather be driving my Jaguar. My point was the Toyota manual says 87 octane is OK but 91 or higher will get better performance. I suspect Jaguar could say the same if they wanted to.
#2339 of 2600 Proud New Owner of '02 X-type
Jan 22, 2006 (2:40 pm)
I must say I am so very thrilled to finally have the opportunity to purchase a Jaguar. It's been a dream of mine since I was 18.
I purchased this car 'Certified' with just over 40,000 miles. I have spent the last two days, driving it in all different environments to become acquainted with it's tendencies. I have a few questions for those of you who are familiar with the '02 X-type. I appreciate all of your information and advice.
1. The steering column seems to make a humming/whining noise when turning hard to the either side. Is this a known issue with this model or something unique?
2. It's an automatic, but there is a 2nd, 3rd, and 4th gear indicator on the left side of the shifting plate. The salesperson wasn't sure if this allowed for speed shifting between these gears while moving or whether they were static gear selection. This may come across as confusing but hopefully some of you understand and can provide insight. I would hate to use these gears as a pseudo manual shifting while moving if it wasn't designed for this purpose and may cause unnecessary transmission wear/tear.
3. The stereo system console supports an embedded cellphone and CD Changer, neither of which were in the car when I purchased it. I have two basic questions. a> If I add the cell phone option can I use any cellphone service (i.e. Cingular, Spring, T-Mobil)? b> Can a 3rd party CD Changer be added in the trunk be supported by the Jaguar stereo system or must I Use Jaguar's CD changer?
I appreciate any help you can provide. I love the car, and I'm simply trying to better understand my alternatives for these issues.
#2340 of 2600 Sunroof Button not working
Jan 22, 2006 (6:57 pm)
Well it is one way. The forward direction button is working, although not one touch functionality. The reverse isn't working at all, therefore to close the roof, I need to keep the forward direction depressed and guess when the sunroof is completely closed. I have a 2002 2.5 X-type.
It all happened after I accidently turned off the ignition whilst the sunroof was closing. I turned the engine on again when I realised my mistake and I've had my problem since.
Is anyone aware of this problem and how to fix it?