So all you 4 bangers what do you think?

I can't speak to how long the engine in my '07 XE will ultimately last, but at 32k miles I have had no problems whatsoever with it and it has aadequate power for my needs. Nissan has used variants of this engine in many vehicles for years and, with the exception of a run of bad engines in the Sentra a few years back, as far as I know it has proved to be a durable powerplant. As for the comments about gas mileage in the V6, I drive pretty tamely and usually average about 21 city (manual transmission) and 23 highway. If you want to believe a 265hp V6 is going to almost match that, you just go ahead and believe that. My impression is that most of the reports of 20+mpg on the VQ40DE on this forum are posted by guys who have had a tad too much of the kool-aid.

paris1 said:

As for the comments about gas mileage in the V6, I drive pretty tamely and usually average about 21 city (manual transmission) and 23 highway. If you want to believe a 265hp V6 is going to almost match that, you just go ahead and believe that. My impression is that most of the reports of 20+mpg on the VQ40DE on this forum are posted by guys who have had a tad too much of the kool-aid.

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my mom has an 06 with the 4.0V6 with the 6 speed manual and she has gotten 23highway with it

There is no way that the 4.0 can match the 4 Banger for fuel consumption. There have been scattered reports showing 23+ mpg. All apocryphal in my opinion.

On the other hand, the 4.0 gives you command of the road. I gotta believe that the 2.4 liter is underpowered for this 4X4 vehicle. It's 4,000 pounds folks.

paris1 said:

f you want to believe a 265hp V6 is going to almost match that, you just go ahead and believe that. My impression is that most of the reports of 20+mpg on the VQ40DE on this forum are posted by guys who have had a tad too much of the kool-aid.

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Eh, I got 20mpg highway with my SE KC 4x2 6M.
About 17mpg highway with my NISMO KC 4x4 6M.


My point is you can do it in a stripper.

City of course is much lower.

It would be nice to hear from some of us that have a 4 cylinder and are nearing or over 100,000 miles just what your experiences have been....good or bad. I have a 4 cylinder but only 18,000 miles. No problems of any kind so far and averages 22 mpg in mostly highway driving.

Well, I'm nearing 50k, and it sounds, feels, performs, and acts the same as it did when it had 7 miles. I get 22 mpg avg with a good even mix of city and highway on 87. I would not call the QR25DE garbage. From my experience with this truck, it is a durable, reliable, solid engine. Just enough HP to get around even when hauling - but no extra HP for the fun factor.

It might be a little difficult to find a Fronty with the QR to have 100k or even more, thats driving about 20k a year... since they came out in 2005.

i have the qr25 and i average right around 20mpg combined hwy/city. i drive a bit spirited but have tried to stretch the mileage here and there.

the qr is a decent motor, but doesnt belong in the frontier. the frontier is just too heavy, and the power is too high in the power band. combine that with the ratios in the 5spd manual and im wishing i would have gotten the v6.

im content is about the best way i can put it. im not thrilled, and im not selling it off yet. im just living with it.

Xelah said:

Get an SE 4x4 6sp best of both worlds with the VQ40DE and 4wd and good fuel economy expect about 20 mpg with 87 octane. Besides that the Q25DE is garbage ask any Nissan tech worth their weight and they'll tell you it's probably Nissan's worst motor, I've personally seen far to many kick the bucket well before 100k (used to sell Nissans).
________

I found this statement in another forum. Any of you have over 100K on yours?
What is you experience? And, if you are a tech and don't agree with him than you are not much of a tech!!!

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I did a survey about 1 year ago on this blog asking for reported problems of any kind from both 4 cylinder frontier owners and 6 cylinder owners and it was the 6 cylinder owners with 4x4 set ups that reported the most problems and a lot of that related to heavy off road use and abuse. The 4 cylinders were pretty much trouble free. I sent the Administrators an email asking for a new poll for 4 cylinder owners on the timechain issue that so far appears to be on the 6 cylinder engine side and not the 4's. So maybe we will have a new poll shortly to see what numbers come up on the 4's for trouble.

so i have an 04 with the ka24de engine... what do techs/consumers think of this engine? does it hold up for the long haul?

4cylman said:

so i have an 04 with the ka24de engine... what do techs/consumers think of this engine? does it hold up for the long haul?

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Will last you a long time if you take care of it. There have been variants of the engine around forever. Mine is adequate and gets the job done.

the KA - series are bulletproof motors. One of the most durable four cylinders ever made. It's up there with the 22R, in my opinion. My dad had a hardbody with a single cam KA (KA24E) with 220k miles when he sold it and it was still going strong (unlike the rest of the truck which was rusted lol)

I know many people with hardbodies/frontiers/240sx that have had them past 200k miles and when they rebuilt them the bearing surfaces and cylinders were perfect. Just keep the oil topped off and it will run forever.

nice! i was really hoping so... had always been a toyota man before this truck... my 22r 4x4 taco had 250k on it and was running great when i sold it for $5k... i know the fronty won't have the same resale value but i just couldn't afford a damn taco

i just rolled over 80K, and aside from replacing the clutch at 60K its been good. I wish it got better mpg's though, the stock tires are too small for the speedo (speed is 4 mph too fast) so anyone running stock size tires will have inflated MPGs. 31's are about perfect per a gps, i get 17 in the city if i drive like a grandma and about 19-20 on the freeway. it's about the same as my parents 06 xterra with auto, so its a toss up. I'm sure you could drive the SE V6 with manual and light wheels/tires and get better.

Have a 03 xe 2.4 w/40,000 miles, yea not many miles, but that's how I roll, get a new truck let my wife drive it 40/50 miles a week till I wear mine out then take her truck, buy a new one, 08 dbcb tundra, and will now run the frontier till she drops, crashed, smashed or falls a part. We shall see, but of this I can say, there are a # of these 2.4l frontiers in the parking lot at work w/200,000+ miles on them. Yea, there cheap to operate & surprisingly tough. Mine get's all the tough jobs (except hurricane evacuations) as my Tundra is still a cream puff with a slight bit of that new car smell still in it.

The main issues this engine had were due to bad precat design and faulty piston rings in 02-03 sentras mainly. This engine in the frontier has proven to be pretty good as the only docmented failure I've seen on the net is with devilrunners truck. (he's a member of this forum). I'm pretty certain his fAilure was due to red lining the engine Which can cause oil frothing because of the balancer Assembly in the oil pan and jumping the truck like it was a Baja truck(Also cAn cause oil starvation). The qr does use smaller bearings than the ka (for efficiency) so oil stavation can be a bigger issue besides After u own a 6 and have to do a 2000 dollar timing chain job the qr looks mighty nice.:fantastic:

JMHO, but any car manuf. that makes a vehicle that needs a timing belt change before 200,000+ miles should re-evaluate there engineering dept. and roll a few heads. They should go the extra mile & help customers out, at least half way on out of warrant issue's. What's up with car co.'s that keep making there vehicles more & more comlex and less & less reliable. KISS
Keep
IT
Simple
Stupid

nice... thats what i was looking for... a reliable, cheap little truck that gets good mpg's that i can drive for the next 10 yrs... bought my 04 xe 5 spd with only 38k/mi last month...

waitingtundra said:

JMHO, but any car manuf. that makes a vehicle that needs a timing belt change before 200,000+ miles should re-evaluate there engineering dept. and roll a few heads. They should go the extra mile & help customers out, at least half way on out of warrant issue's. What's up with car co.'s that keep making there vehicles more & more comlex and less & less reliable. KISS
Keep
IT
Simple
Stupid

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I believe the QR25DE has a timing chain. Correct me if I am wrong.

Xelah said:

I believe the QR25DE has a timing chain. Correct me if I am wrong.

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Correct, but not all the problems as the V6:noworries: