J30 Fuel mileage

Post by **rwhyde** » Fri Aug 12, 2005 12:02 pm

OK,

My j30 just rolled over 128K miles and I did a fresh valve job on it after the timng belt jumped due to the drivers side (left camshaft) seized. I am doing some short road trips mostly lately and seem to be getting 21.6 mpg.How are you guys doing?? It drops to about 19 if pure around town. I'm pretty easy on it around town but on the highway it is 80-90 normally crusie mode.

Post by **elwesso** » Fri Aug 12, 2005 6:35 pm

Your city mileage sounds about right, if not high-ish, but most people get around 24 mpg or so...... however, 22 doesnt sound too bad considering the speed in which you choose to travel

I think you could probably replace the o2 sensors and regain that last 2mpg, theyll be about $100 for the pair from sparkplugs.com (a NICO sponsor)

Post by **DominickJ30** » Fri Aug 12, 2005 7:39 pm

Whos getting 24 mpg from their J? Maybe brand new

I get about 14-15 with regular driving

BTW Infiniti advertised it at 18/23

Post by **elwesso** » Sat Aug 13, 2005 5:52 am

I remember when VimyJ was here he took a long trip and he got around 24MPG....

Replace those o2 sensors

Post by **yodawill2000** » Sat Aug 13, 2005 2:27 pm

im at about 20 ..Unless I get jiggy wid' it alot ..But the way fuel is these days I dont often ..

Website · Post by **diamond** » Sun Aug 14, 2005 7:02 am

25+ with 436 rear end gearing hiway.

Post by **1993TanJ30** » Mon Aug 15, 2005 2:45 am

Here we go again with the 4.36 gearing!

I need more info! Quicker pickup, 24+ MPG on the highway - sounds to good to be true!

What car did it come off of, do you know anything about their origin?

Was it a direct fit, fabrication required, etc?

Thanks!

Post by **DominickJ30** » Mon Aug 15, 2005 7:15 am

If you know diamond, then you know everything on his car is custom.

Website · Post by **diamond** » Mon Aug 15, 2005 7:55 am

last trip was 460 on 15 gallons.on E.not me,the gas gauge,lol.minus 45 miles cause it reads over.so about 410 miles.thats using cruise control tho.your miliage may vary.loli used to be lucky to get 21.

Post by **1993TanJ30** » Wed Aug 17, 2005 4:29 am

I just put a full tank of gas in - and ran it empty...

18.5GAL fill up - 285 miles!!!

Ordering new O2 sensors, and putting the BG kit to use - what else can I do?

Website · Post by **diamond** » Wed Aug 17, 2005 7:54 am

oh man..bet its better after the maintanace.

Post by **rwhyde** » Sun Aug 21, 2005 10:18 am

So diamond,

did you recalibrate your speeometer/odometer to your new rear end ratio?How?? It might just be that your are showing more miels than you actually traveled, hence your fuel mileage appears to be improved. What rpm are you turning at 80 mph for example?? I'm sure you get to 80 mphg much faster than the rest of us though.

Best Regards,Wayne Hyde

Post by **1993TanJ30** » Mon Aug 22, 2005 2:24 am

Yeah, lets all go EXACTLY 80MPH, and see what RPM we are at! That'll let us know if we're on the same page or not!

Good idea, today on the highway after work, I'll report back results!

Post by **fourdrinie** » Mon Aug 22, 2005 6:30 pm

stock J30....going 80 mph the tach was a hair over 3000 RPM

Post by **1993TanJ30** » Tue Aug 23, 2005 4:43 am

I'll check mine out! I forget to yeseterday will report back in a couple hours!

So around 3050RPM or so, or closer to the 3200 mark?

THANKS!

Post by **fourdrinie** » Tue Aug 23, 2005 6:21 am

around 3025-3050, no higher....definitely not closer to 3200..just a hair above 3000 line..

Post by **1993TanJ30** » Tue Aug 23, 2005 6:46 am

Taking off for lunch in a few minutes, going to check it out then...

No highway driving so hitting 80 is going be fun haha

Be back w/results!

Website · Post by **diamond** » Tue Aug 23, 2005 7:28 am

cant find anyone to calibrate.im correct in my totals.pretty simple, even i can figure it out,lol.im at 3200 at 70-75.i forget.lol.got to remember though,my car does not shift all over the place in overdrive like a normal one.not even close.you get to speed it holds it firm.gives the car way better power to climb.closer to the zone.hehe.top speed only 123 but how often you need the extra ten.lol.i like flying around mountain roads.a racer it is not.funny thing is you can tell the ecu is set richer .whole different exhaust note just idling.deeper.thicker,richer,lol.
Modified by diamond at 6:39 PM 8/23/2005

Post by **1993TanJ30** » Tue Aug 23, 2005 11:16 am

Haha, diamond your posts always entertain me

Didn't have a chance on lunch to bring her up to 80, will report tomorrow, I promise!!!

Post by **krewzn_along** » Fri Aug 26, 2005 7:49 am

DominickJ30 wrote:Whos getting 24 mpg from their J?

I'm getting better than that!

Hi, new member here. I bought our '97 J30 earlier this year for my wife to drive. I've been reading the forum for a month, beginning when I needed to find a shop for a new timing belt and I wanted to know the scoop first.

Recently started a new job where my daily drive is about 110 mi round trip, all freeway and now I'm driving the J30. Keeping the speed at 65 - 75 I am getting 24.5-26 MPG! I watch the AC use (50% of less) but 50% of the drive is hilly, so it's not a flat or straight drive. I've been measuring this for 2 months, before and after the timing belt, water pump, belts, & seals along with major service (plugs, AT fluid, etc.).

I miss my 2000 A4 Quattro 2.8 5sp but I am very impressed with the J30 interior design, overall solidness, quietness of ride, and availability of power. We plan on keeping it for quite a while. Based on the mileage I'm getting sounds like I found a nice J30 and I'm pleased.

Website · Post by **diamond** » Sat Aug 27, 2005 7:26 am

right on.right on.

J30 Fuel mileage

J30 Fuel mileage

Re: J30 Fuel mileage (rwhyde)

Re: J30 Fuel mileage (elwesso)

Re: J30 Fuel mileage (DominickJ30)

Re: (1993TanJ30)

Re: (diamond)

Re: (1993TanJ30)

Re: (1993TanJ30)

Re: J30 Fuel mileage (DominickJ30)

Nissan Forums

Infiniti Forums

Datsun Forums

Technical Forums

Classifieds / Marketplace

Nissan Motorsports

General Forums