Avatar of ThatDude

ThatDude

Which Fuel - Premium, E10 or Unleaded?

Just want to find out which fuel is the best for my wrangler. I heard people get a lot more mileage out of their petrol engines when they use premium (95 and more octane) instead of unleaded. As well I heard that E10 has increased octane number. What do you guys use?
Jeepman

Just go with the regular stuff mate. Going Premium or higher grade octane fuel is could be harmful and you won't feel a difference anyway.

Keep in mind that the higher the octane rating the higher the resistance of the fuel to burn is. You use higher octane fuel only in engines with higher compression otherwise you have to adjust the ignition timing (dyno tune). You will put your engine on risk if it is not setup for it (over time) and it causes higher emissions which then again causes valve problems as not properly burned fuel can clock up your valves. Have a look what your handbook says.
ARGS

The 6g74 in my pajero need a 95 premium minimum. I sometimes run the 91 which I don't notice too much of a difference, prob just a little down on power.

More from our Forum


Tuan2020 in Jeep Wrangler
Thinking Of Buying A JK

I'm thinking of buying a JK in a 4 door. What is more reliable  petty or diesel? Is the...

Tuan2020 in Members Introduction
Hi Everybody

Hi everybody. My name is ZomVictory, I'm 28 years old, I'm a gamer, I play games on favorite...

phuong2020 in Feedback and Compliments
Sharing 4x4 Routes

Google maps is ok for normal roads however unless you edit Google maps fire trails etc are not able...

Boar2Thor in Members Introduction
Hey Guys

Hey all.New here, and newb to 4x4.I have wanted to start 4wding my whole life, but never had the...

Roby02 in Members Introduction
G,day

Hi just purchased another jeep wk grand Cherokee 70th.Joined for information and knowledge base for...

sunnywilson09 in Mitsubishi Pajero
Long Range Fuel Tanks

Can anyone recommend long range fuel tanks for mitsubishi pajero 2017 NX GLS.Can you send photos if...

APera in Mitsubishi Pajero
Engine Idle Problems

Hi All,I have a Pajero 1995 3.5L V6 petrol automatic. It has done 190k kms. I have had this for...