Just bought a used Corolla xrs... Fuel door says USE PREMIUM FUEL ONLY... Ture or not?

Asked by Jun 01, 2008 at 09:14 AM about the 2005 Toyota Corolla XRS

Question type: General

5 Answers

55

The Corolla XRS uses a high-performance motor that needs premium fuel. Sorry, you gotta pay the money for it.

2 out of 2 people think this is helpful.
45

Although it is recommended by the manufacturer to use premium, it is not absolutely necessary. Your engine won't be damaged or anything if you use regular. The only thing you'll lose is performance, because the XRS has a strong motor, but with gas prices these days I think that is a sacrifice you're willing to make?

1 out of 1 people think this is helpful.
7,965

If the manufacture recommends premium it is for a reason. It's not a selling point for them, they aren't going to put the sticker on there because the sticker looks pretty. Generally speaking they require for one or both of two main reasons.... 1) High compression 2) An advanced timing map. Use of low octane fuels in either case can lead to pinging or pre-detonation, which contrary to what Sang says can eventually damage the engine regardless of how strong it is. On the plus side you likely won't do any serious damage since in most places the octane rating posted is a minimum and is generally higher than stated... Additionally there are safety coefficients in the equations used to determine fuel, and the vehicle will likely only pre-detonate if it is out of tune slightly. And as for Sangs second comment about performance... a little secret if the car can run on low octane it'll generally run better on it. This is due to the fact that low octane has a higher caloric value and contains more energy. It is however less stable so increase compression and optimizing timing will cause it to burn irregularly and becomes less effective in a more efficient motor. A bit of a paradox really... But basically if you have a cruddy car you get to get cruddy gas...if you got a nice car you have to get nice gas... As for why your car wants premium... I would guess the compression in the engine... which is I believe 11.5:1... This is incredibly high hence why you suffer both a performance and potentially a reliability decrease with a lower octane fuel.

5 out of 5 people think this is helpful.

Thanks All

95

On the gauge cluster of my Integra GS-R, it says that it requires "premium unleaded fuel only." However, looking at the manual says that if you live in an area where no high-octane fuel is available, put in the highest octane you can find. My car has a knock sensor which will back off on the timing when it senses a lower octane, but I've never put the car through that. I, by NO means recommend cheaping out, so just do what the car tells you to. Your gas mileage would also drop down if you put a lower octane for it. If you can afford the car, put the right gas in it.

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

  • how many XRS 2010 made 2 answers

    2010 Toyota Corolla XRS

    -

    General

  • how can I tell which model corolla I have ? 4 answers

    I have a 2005 corolla. However, I don't know which model it is (CE,LE,S,XRS). What would be the easiest way to find out ? Thank you in advance.

    2005 Toyota Corolla

    -

    General

  • What is recommended fuel type? 6 answers

    I have been using Premium gas in my 1995 Corolla and getting about 35 mpg on the highway. I don't have the owner's manual so I don't know what the manufacturer's recommended fuel type is. Can I chan...

    1995 Toyota Corolla LE

    -

    General

  • would i get better mpg if used kn air filters or premium gas???????????? 10 answers

    2009 Toyota Corolla S

    -

    General

  • Premium fuel? 9 answers

    I bought a retired Ford Crown Victoria cop car, Police Interceptor, 82,490 miles from LA Sheriff's Office Auction andtion and it says "Premium fuel only" on the door to the gas cap. Do I really need p...

    2010 Ford Crown Victoria LX

    -

    General

Corolla

Looking for a Used Corolla in your area?

CarGurus has 74,312 nationwide Corolla listings starting at $1,790.

ZIP:

Search Toyota Corolla Questions

Toyota Corolla Experts

#1 FordNut
FordNut
Reputation 16,310
#2 Tom Demyan
Tom Demyan
Reputation 2,330
#3 tenspeed
tenspeed
Reputation 1,790
View All

Related Models For Sale

Used Toyota Camry
872 Great Deals out of 91,061 listings starting at $1,300
Used Honda Civic
511 Great Deals out of 80,668 listings starting at $558
Used Honda Accord
685 Great Deals out of 81,552 listings starting at $1,200
Used Toyota RAV4
590 Great Deals out of 65,049 listings starting at $999
Used Nissan Altima
759 Great Deals out of 77,505 listings starting at $470
Used Nissan Sentra
434 Great Deals out of 52,826 listings starting at $1,600
Used Hyundai Elantra
471 Great Deals out of 52,086 listings starting at $1,699
Used Toyota Tacoma
536 Great Deals out of 37,291 listings starting at $2,900
Used Toyota Yaris
101 Great Deals out of 13,548 listings starting at $1,745
Used Honda CR-V
692 Great Deals out of 56,124 listings starting at $1,300
Used Mazda MAZDA3
221 Great Deals out of 29,134 listings starting at $1,495
Used Toyota Prius
177 Great Deals out of 20,221 listings starting at $1,997
Used Ford Focus
544 Great Deals out of 55,232 listings starting at $500
Used Hyundai Sonata
499 Great Deals out of 49,705 listings starting at $1,300

Used Cars For Sale

2017 Toyota Corolla For Sale
7 Great Deals out of 45,486 listings starting at $14,477
2016 Toyota Corolla For Sale
95 Great Deals out of 6,126 listings starting at $10,800
2015 Toyota Corolla For Sale
140 Great Deals out of 5,853 listings starting at $8,999
2014 Toyota Corolla For Sale
170 Great Deals out of 5,756 listings starting at $6,995
2013 Toyota Corolla For Sale
61 Great Deals out of 1,904 listings starting at $6,899