x7xstring

Hi guys, been awhile since i've been on here and thought I would share a little data with you.

I thought I would try different types of octane and see what the differences would be in my car.
So I'll start with what Im driving;...

1997 Hyundai Tiburon (Rev'A)
1.8L
Auto
Colour: Savanna Green
212,012km


Performance mods include:
CAI , Catback Motoria exhaust , Overdrive pulleys , Magnacore ignition wires

Okay here's the data I have collected (one year's worth).

April 24th
-------------
408km @ 50.9L = 8 kilo per litre
(22.6 miles)

May 10th
--------------
443km @ 51.645L = 8.5 kilo per litre
(24.2 miles per gallon)

May,26th
-------------
(91 octane)

457km @ 50.141L = 9.15 kilo per litre
(25.76 miles per gallon)

June 8th
-------------
(91 octane)

477km @ 53.157L = 8.97 kilo per litre
(25.36 miles per gallon)

June 25th
--------------
(91 octane)

457.75km@ 50.802L = 9.010 kilo per litre
(25.46 miles per gallon)

July 14
-------------------
(94 octane)

453km @ 48.852L = 9.3 kilo per litre
10.7 Litres per 100 kilometers
(26.2 miles per gallon)

Aug 5th
----------------------
(87 octane *Changed spark plugs/ cleaned air filter)

446.3km @ 51.160L = 8.7 kilo per litre
(24.6 miles per gallon)

Aug 25th
---------------------------
(91 octane)

475km @ 51.092 = 9.3 kilo per litre
(26.2 MPG)


September 10th
-----------------------
(91 octane, fuel injector cleaner added)

404.7km @ 46.712 = 8.6 kilo per litre
11.5 = Litres per 100 kilometres
(24.48 MPG)

September 27th
------------------
(89 Octane)
448.5km @ 51.555 = 8.6 kilo per litre
11.49 = Litres per 100 kilometres
24.5 MPG

October 14th
-------------------------------------
(87 octane)

380km @ 47.130L = 8.06 kilo per litre
12.4 = litres per 100 kilometer
(22.7 MPG)

October 29th
----------------------
(89 octane)
447.8km @ 53.727L = 8.3 kilo per litre
11.9 = litres per 100 kilometers
(23.5 MPG)

November 14th
------------------------------
(87 Octane)

406.6km@ 51.960L = 7.8 kilo per litre
12.7 = litres per 100 kilometers
(22.1 MPG)


November 28th
------------------------------
(94 octane - remote started everytime!)

388.7km @ 52.147L = 7.45 kilo per litre
13.41 = Litres Per 100 kilometers
21 (MPG)

December 10th
---------------------------------
(91 octane)

403km @ 52.370L = 7.6 kilo per litre
12.9 = Litres per 100 kilometers
21.7 MPG

December 22nd
----------------------
(91 Octane) (55 litres in a 14.5 gallon tank??? how is this possible? LOL)

371.9km @ 55.007L = 6.7 kilo per litre
14.7 Litres per 100 kilometers
19.1 MPG

January 11th
------------------------
(91 Octane)

387 km @ 51.26L = 7.5 kilo per litre
13.2 Litres per 100 kilometers
21.3 MPG


January 23rd
-----------------------
(91 Octane)

367.7 @ 50.117L =7.3 kilo per litre
13.6 Litres per 100 kilometers
20.7 MPG


Feburary 4th
---------------------------------
(87 octane) (New fuel filter, Coolant flush/* discovered have a cracked header*)

362.2 km @ 47.537L = 7.6 kilo per litre
13.1 Litres per 100 kilometers
21.5 MPG

February 17th
-----------------------
(87 Octane) (New Hi-flow Cat)
371.8 km @ 52.070L = 7.1 kilo per litre
14.0 Litres per 100 kilometers
20.2 MPG

Feburary 28th
-----------------------
(87 Octane)
385.9 km @ 49.650L = 7.7 kilo per litre
12.9 Litres per 100 kilometers
22.0 MPG

March 14th
----------------------------
(94 Octane)
357.3km @ 50.264L = 7.1 kilo per litre
14.0 Litres per 100 kilometers
20.0 MPG


March 29th
----------------------------
(87 Octane) (Changed oil 10W30)

385.1 km @ 49.130L = 7.8 kilo per litre
12.7 Litres per 100 kilometers
22.1 MPG

April 11th (aprox)
-------------------------------
(91 Octane)

427.4km @ 51.263L = 8.3 kilo per litre
11.9 Liters per 100 kilometers
23.5 MPG

May 15th
-------------------------------
(87 octane)

481.7km @ 52.212L = 9.2 kilo per litre
10.8 Litres per 100 kilometers
26.0 MPG

Well, there it is.
Keep in mind that I live in a place where it snows in the winter months, and of those months
I used my remote starter to warm the car up in the mornings so my ass wouldn't freeze!
That of course would bring the numbers dont quite a bit.

I havn't analized it too much just yet, so i'll leave that up to you guys if you wish smile.gif.

Enjoy

-Chris

fonseca

Is this mostly city driving? I'm trying to understand why your average mpg is on the low side in the summer months, with a 1.8 no less. I guess it's just the older engine.

That's interesting though. Man, you really take a hit in the winter.

x7xstring

Yeah, sorry, I meant to add that it was mostly "City" driving.
Damn right I take a serious hit in winter, ...kinda sucks.

rallyman

You should ditch that remote starter. All that idling is killing your fuel economy (not to mention the environment). I live in Oakville, Ontario so drive in virtually identical conditions as you and do mostly city driving. In winter I usually get around 500 km on a tank of gas (48 to 50 litre fill up). In the better weather I easily get 600+ km per tank. My best ever is 801 km (basically all highway cruising).

I have a 2000 Tib with 5-speed so it should get a little better than yours though. I've got about 170,000 kms on mine. How many kms are on yours?

Screwdriver

I monitor my fuel efficiency weekly and find that it is greatly dependent on car condition as well.

Changing my cat manifold and bearings shot my mileage up from 22.5 to 31 mpgs.

I now consistently get between 26 and 32 mpgs (I use a very good regimen of additives and have 50% highway 50% Rush hour bumper to bumper driving patterns)

SwiftTiburon

Thats pretty cool man.

I drove about 326 miles and then filled up my tank..was mostly highway miles though. Got 29.6 mpg

Rd1tib

swift-^^^ with TURRRBOOO?

SwiftTiburon

Yeah i was surprised too, but Im not boosting much. When the car was messed up i got about 24 mpg. My fuel tank level thing got stuck and so I just kept driving until the dummy light came on. Had 326 miles on the odometer when I filled up and calculated everything and it came out to 29.6 mpg.

Rd1tib

dude... my rd1 with 85k auto has 20mpg.. 22 at most.. congrats for boost'n and good mileage

SwiftTiburon

Thanks, I guess I got lucky.

When I first got my tib I think I did about 26-28 mpg.