I like the sti wagons a lot but I cant be in a car anymore, not as a primary driver..
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I like the sti wagons a lot but I cant be in a car anymore, not as a primary driver..
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So aside from doing a bunch of maintenance on the XK this spring/summer such as fluid changes, rear brakes, and E-brake line. I am debating on my next big item. My choices are sliders, new tires or new wheels.
Thoughts? Suggestions?
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sliders so you can wheel worry free
Out of the 3 choices you're currently only missing one of them. ... id go with sliders!
Keep your eye on JK forums for wheels and tires for sale... lots of those guys change wheels more than they change their oil
Yeah sliders were my first choice. Matt if you dont mind Id like to do the same reinforcement to the bolts as you did. I will be ordering them once we return from the honeymoon lol after sliders I will probably pick up the front guard to have full skids.
Matt, I will keep an eye on JF. Thanks.
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No problem man. Wedding's coming up quick huh?
Yeah man lol only 4 months now.
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So we'll be looking forward to welcoming Corey Jr into the world about this time next year....:p
Get the sliders first
Sliders first, Corey Jr later...
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Lmao yes. Kacie and I are both buying something big for ourselves because once the baby comes......
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Does anyone else put Plus grade fuel faithfully? Or just me...
Also, how often do you guys with K&N filters change or clean the filter? Mine hasnt been touched in over a year 1/2.
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I use 91 or 93 octane every fill
I run 89 per the manual. I tried every combination... 89 and 91 with stock tune, then 87, 89 and 91 with the associated superchips tune; 89 w/stocktune was always the best mpg and no significant performance increases with the higher tunes. Though i'm relatively easy on the gas so didn't really put the WOT tuning to the test.
I usually clean my K&N once a year. Take a peak at it... if it's not dirty then don't worry about it.
I've done very well running 87 octane since new.
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I ran my HEMI always with 91 or 93 with the tune at 91 Performance tune. I was avg 17-18mpg highway even with the MT/Rs with I stayed under 72mph and 12-13 city with a heavy foot. My intake I cleaned constantly cause Im ocd about it. You really dont have to but with the wheeling, winter and constant city driving I like to keep it clean. Keep in mind I work from home and have down time where the filter can dry enough before putting the oil on.
My HEMI ran like **** with anything less than 91 in it, even with the right tune and my mpgs were terrible. I also drove aggressive cause who doesnt like the sound of a HEMI at WOT with true duals!
Its 100% cause of the snorkel lowering air temps being a true cold air intake
I think I've mentioned this somewhere in another thread, but, at least for me, the question of which octane to run and possible tunes (if applicable) is a rather multifaceted one. It's one thing to run various octanes and engine tunes for power and performance reasons, but when some guys throw in what kind of MPGs their getting, I think we need to take a step back and reassess...
While it's common to talk about MPGs and their improvement with octane and tunes (or how they go down the crapper with lifts and added weight), the bottom line for the discussion is really money. I ask, what's the difference between 18mpg running on 87 octane and 18mpg running on 91 octane with a tune? Well, it's still 18mpg, but the difference is the cost of the fuel. I once did some calculating and came up with something like this (for my commute to work):
$27 (to fill half the tank) / 138 miles (my round-trip commute) = $0.1957 per driven mile
So, yesterday I paid $3.29 for 87 octane. It costs me about $0.20 to drive 1 mile, on average. Premium (91) at the same station is $3.59, so it would have cost about $29.50 to fill up. That translates to $0.2141 per driven mile. While this calculation does not take in to account driving styles (burnouts!) or conditions (city, hwy, traffic...), I think it provides a better comparison across setups. So, when the question is asked, "is the 4.7L more fuel efficient than the 5.7L with MDS?" or "which tune (and octane) should I run for better mileage?", I think it's better to just ask "which setup saves me the most money?" So at roughly 1.5 cents per mile difference between running 87 and 91, across 10,000 miles (yearly?) that's $150.
So, at least for me, I'm not looking for power gains, since the XK is my daily driver. I am happy with the stock performance, so I look to save some $$$ where I can. Running a higher octane does not work out for me financially.
I once did a calculation to compare the cost of running my XK vs my wife's turbocharged Subaru Outback. You would think there would be a big difference, but since the turbo requires premium fuel, the costs are almost the same!
Personal preference is obviously the main underlying point. Im never satisfied with the stock performance haha and to me $150 per year to run a higher octane and more performance is well worth it. Reason I mentioned mpgs is because when you factor in the extra weight from tires, lifts, skids and other accessories it says a lot on how much tune helped with daily driving and maintained a more reasonable cost to the owner. Mpg are one of my biggest points with tunes, almost every tune Ive used has improved it while increasing performance
I have to run the 91 performance tune on my jeep because the stupid dealer decided to do a flash on the computer years back without telling me and it was tuned with the Flashpaq already and it messed everything up. If I try to go back the the stock tune the transmission shifts all messed up
Well my real concern was not MPG or money. My concern is what is best for the engine? Will using the manufactor recommended octane (89) pay off in the end? Or am I wasting money filling it up with Plus instead of Regular. I know premium is a no no unless your tuned for it. Which I will not be tuning it anytime soon.
Thankfully I am willing to put out money if it will increase the life of the XK. I am firm on keeping this truck until it dies. Keeping it properly maintained is number 1 on my list.
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It wont help or hurt you, even if you did tune it. Running cleaner gas and no off brand cheapo **** will help, but running the 89 or 91 really wont help or hurt the life of the engine itself, just take care of it and dont rag on it like I do and it should run forever!
The octane you run has to do with engine timing and compression. The hemi is capable of adjusting the timing to some degree on its own, which is why you can run 87 or 89 octane. It doesn't hurt the engine. You will not get any benefit running 91 if you don't install a tune, but it won't hurt it.
87 can be run as long as there's no pinging. Pinging (pre detonation) will damage the engines. Every engine varies, so one person not having pinging issues does not mean you won't have pinging issues. There's also other factors that influence the likelihood of pinging to occur- higher ambient temps, cooling system efficiency, engine load (towing or heavy throttle), etc.
Facts aside here's my opinion:
If your vehicle is running well on 89, and you're not putting a lot if miles on it (ie not much cost savings), stick with 89.
Well the reason I bring this up is because I am going from 12 miles a day to 46. So I may switch back to 87.
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Best thing to do is fill a tank with different octanes and see how it responds. As Matt said every motor is different, personally Id NEVER run less than 89 in a HEMI but thats me and my preference. Try out all 3 and see what happens. One tank wont hurt anything..
I always ran 87 in mine, even towing.. I couldn't see a difference that was worth the extra money with the superchips tunes at higher octanes.
Yeah man if you're jumping up to that mileage give 87 a shot. Take it easy on the skinny pedal and see how she feels.
I also recommend using one of the top tier stations when possible: http://www.toptiergas.com/retailers.html
Yeah I am going to try 87. I did run 87 when I first got the XK with no issues. Well see. I usually fill up at a Sunoco or Exxon.
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Matt, will you be available in May? My idea was to do the fluid changes, Ebrake line and brakes, and then in July install the sliders.
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Bad day. My "check gascap" warning came on? Nothing wrong with the gas cap. 3 days later and now my check engine light is on which I find ironic....
To top it off. I went to change the fog light which burnt out and the little flap door snapped off so now its duck taped....
Screw you XK.......
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Yeah I should be good sometime early/mid May.
I bet your check engine light is on for small evap leak. Key dance to get the code?
Evap leak? I will key dance later I had to run out quickly.
Any suggestions on covering the fog light hole? Lol I dont think duck tape will hold forever.
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Do I have to take a number to sign up for a slot in May?
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We can make it a wrench fest in May :)
Corey did you save the plastic that broke off?