# SR20DET/CA18DET Fuel Economy **URL:** \ **Category:** Canada Nissan Automotive\ **Created:** [August 13, 2006, 7:42pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792 "2006-08-13T19:42:47Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![andres\_mt](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@andres\_mt](https://forums.speedlife.net/u/andres_mt)\ **Post date:** [August 13, 2006, 7:42pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/1 "2006-08-13T19:42:47Z")
Hey guys, Just wondering what some numbers you guys are getting for fuel economy for those of you running any type of SR20DET or CA18DET. Thanks. ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [August 13, 2006, 8:34pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/2 "2006-08-13T20:34:01Z")
572 Kms on this tank. About half highway, half city but there was a track day involved. SR @ 14PSI ---
**Author:** ![imported\_silvia](https://avatars.discourse-cdn.com/v4/letter/i/e79b87/32.png) [@imported\_silvia](https://forums.speedlife.net/u/imported_silvia)\ **Post date:** [August 13, 2006, 8:37pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/3 "2006-08-13T20:37:53Z")
i have a SR with 13PSI, and a ECU with safer air/fuel ratio, intake, exhuast, MAF, FMIC, stock injectors and fuel pump. probably in the area of 230-250HP. i get about 350KM city, and just over 500KM highway. ---
**Author:** ![Dynamo7](https://avatars.discourse-cdn.com/v4/letter/d/5fc32e/32.png) [@Dynamo7](https://forums.speedlife.net/u/Dynamo7)\ **Post date:** [August 13, 2006, 8:42pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/4 "2006-08-13T20:42:20Z")
Ii get 320km city/ 500 hwy on my stock CA ---
**Author:** ![silvers13](https://avatars.discourse-cdn.com/v4/letter/s/47e85d/32.png) [@silvers13](https://forums.speedlife.net/u/silvers13)\ **Post date:** [August 13, 2006, 8:49pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/5 "2006-08-13T20:49:51Z")
400ish city on a ca18 t28bb at 12 psi never been on the highway long enough to get an accurate reading ---
**Author:** ![DeathBy240](https://avatars.discourse-cdn.com/v4/letter/d/258eb7/32.png) [@DeathBy240](https://forums.speedlife.net/u/DeathBy240)\ **Post date:** [August 13, 2006, 9:07pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/6 "2006-08-13T21:07:53Z")
I get between 500-550. Lots of highway though. SR at 12psi. ---
**Author:** ![Inzane](https://avatars.discourse-cdn.com/v4/letter/i/b38774/32.png) [@Inzane](https://forums.speedlife.net/u/Inzane)\ **Post date:** [August 13, 2006, 9:20pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/7 "2006-08-13T21:20:02Z")
> [@RS13](#): > > SR @ 14PSI 14 on straight 91 pump, or are you using Husky/Mohawk 94? (or other) ---
**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\ **Post date:** [August 13, 2006, 10:35pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/8 "2006-08-13T22:35:32Z")
CA at 10 psi gets me close to 500 on the highway and about 350-400 in town. ---
**Author:** ![TyPhOOn](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/typhoon/32/5800_2.png) [@TyPhOOn](https://forums.speedlife.net/u/TyPhOOn)\ **Post date:** [August 14, 2006, 7:22am UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/9 "2006-08-14T07:22:43Z")
lucky … ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [August 14, 2006, 8:08am UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/10 "2006-08-14T08:08:44Z")
> [@Inzane](#): > > [quote=RS13]SR @ 14PSI 14 on straight 91 pump, or are you using Husky/Mohawk 94? (or other)[/quote] I use both. I have found my gas milage is basicly the same between the two fuels. Shell V-power and husky 94 ---
**Author:** ![Inzane](https://avatars.discourse-cdn.com/v4/letter/i/b38774/32.png) [@Inzane](https://forums.speedlife.net/u/Inzane)\ **Post date:** [August 14, 2006, 8:55am UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/11 "2006-08-14T08:55:11Z")
> [@RS13](#): > > [quote=Inzane][quote=RS13]SR @ 14PSI 14 on straight 91 pump, or are you using Husky/Mohawk 94? (or other)[/quote] I use both. I have found my gas milage is basicly the same between the two fuels. Shell V-power and husky 94[/quote] Well, what I was wondering was are you getting away with 14 psi on straight 91 octane with zero detonation? (I’ve been able to in the past as well, as long as I stuck to shell gas, but I’ve backed off a bit this year. I’m running 13-13.5 psi these days to play it safe). ---
**Author:** ![andres\_mt](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@andres\_mt](https://forums.speedlife.net/u/andres_mt)\ **Post date:** [August 14, 2006, 1:28pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/12 "2006-08-14T13:28:58Z")
Is it true that you can get your ECU tuned for Canadian gas to improve fuel economy? if you have a JDM car for example. ---
**Author:** ![RS13](https://avatars.discourse-cdn.com/v4/letter/r/46a35a/32.png) [@RS13](https://forums.speedlife.net/u/RS13)\ **Post date:** [August 14, 2006, 4:08pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/13 "2006-08-14T16:08:35Z")
> [@Inzane](#): > > [quote=RS13][quote=Inzane][quote=RS13]SR @ 14PSI 14 on straight 91 pump, or are you using Husky/Mohawk 94? (or other)[/quote] I use both. I have found my gas milage is basicly the same between the two fuels. Shell V-power and husky 94[/quote] Well, what I was wondering was are you getting away with 14 psi on straight 91 octane with zero detonation? (I’ve been able to in the past as well, as long as I stuck to shell gas, but I’ve backed off a bit this year. I’m running 13-13.5 psi these days to play it safe).[/quote] Yes with 91 my a/f are perfect on they dyno. At a dyno day last year i could not hear ANY detonation, while most other turbo cars you could. I have a JDM ecu so i just retarted my timing 1 or 2 degrees. Works like a charm. ---
**Author:** ![GRIPPY](https://avatars.discourse-cdn.com/v4/letter/g/ad7895/32.png) [@GRIPPY](https://forums.speedlife.net/u/GRIPPY)\ **Post date:** [August 14, 2006, 5:01pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/14 "2006-08-14T17:01:34Z")
Im gettin close to 450km to a tank city driving on my SR but only doing 9 psi right now due to a nasty exhaust leak. ---
**Author:** ![sil\_eightyRPS13](https://avatars.discourse-cdn.com/v4/letter/s/2bfe46/32.png) [@sil\_eightyRPS13](https://forums.speedlife.net/u/sil_eightyRPS13)\ **Post date:** [August 14, 2006, 7:52pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/15 "2006-08-14T19:52:44Z")
the SR or KA tranny have a wider fifth gear, but the CA trannies gearing are nice for accel, but are too short on my opinion… ---
**Author:** ![silvers13](https://avatars.discourse-cdn.com/v4/letter/s/47e85d/32.png) [@silvers13](https://forums.speedlife.net/u/silvers13)\ **Post date:** [August 14, 2006, 11:13pm UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/16 "2006-08-14T23:13:28Z")
> [@sil\_eightyRPS13](#): > > the SR or KA tranny have a wider fifth gear, but the CA trannies gearing are nice for accel, but are too short on my opinion… …why i hate taking my ca on the highway! ---
**Author:** ![sil\_eightyRPS13](https://avatars.discourse-cdn.com/v4/letter/s/2bfe46/32.png) [@sil\_eightyRPS13](https://forums.speedlife.net/u/sil_eightyRPS13)\ **Post date:** [August 16, 2006, 12:52am UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/17 "2006-08-16T00:52:44Z")
> [@silvers13](#): > > [quote=sil\_eightyRPS13]the SR or KA tranny have a wider fifth gear, but the CA trannies gearing are nice for accel, but are too short on my opinion… …why i hate taking my ca on the highway![/quote] then swap to a KA tranny!!! i did!!! ---
**Author:** ![CA18DET-180SX](https://avatars.discourse-cdn.com/v4/letter/c/e0b2c6/32.png) [@CA18DET-180SX](https://forums.speedlife.net/u/CA18DET-180SX)\ **Post date:** [August 16, 2006, 11:51am UTC](https://forums.speedlife.net/t/sr20det-ca18det-fuel-economy/143792/18 "2006-08-16T11:51:57Z")
What would a CA rev at on the highway in fifth at a hundred with a KA?