Petrol Question - long drive..

[Russ]

you did too with me driving

[Russ]

k 'moff, see you in a week

[Stringent]

Persoanlly I think just use regualr. I think in terms of cost, for the extra you pay for optimax, you could do the total milage anyway on regular unleaded. But I think it might be psycological, my car does have a bit of va-va vooooooooooooooommmmmmmm with optimax!

[Skii]

I've never in my life used anything else than normal unleaded.

[Konan555]

supermarket fuel is actually exactly the same as normal bp fuel.. most cars, even new ones, wont notice the slightest difference between 95 and 98 ron, its only if you have a tubby or highly tuned engine that you need 98 for (and even then, it will run fine on 95 if you dont use all the power..)

If you've got a knock sensor you may notice an improvement I suppose. In many cases, the car's set for 95RON whatever.

As for optimax - my motor hates it.

[Rave]

My MR2 is fine down to 91 RON according to the manual. Makes me wonder if I shouldn't advance the timing a smidge.

[autopilot]

Ahh yes, the great premium petrol scam... let me find some links to the sites that have comprehensively proven that these 'performance' fuel really make 0.00000001% difference in performance and engine life span (even in high fairly performance engines)...

(if anyone else can find any of the research please save me the bother)

[Skii]

Ahh yes, the great premium petrol scam... let me find some links to the sites that have comprehensively proven that these 'performance' fuel really make 0.00000001% difference in performance and engine life span (even in high fairly performance engines)...

(if anyone else can find any of the research please save me the bother)

Ah a gentleman who knows a scam when he sees one.

Welcome aboard the good ship HMS Sense, sir

[[GSV]Trig]

Speak for yourself Dom, my engine you can feel the difference...
Or are u talking the difference between say Sainsburys SUL97Ron and BP Ultimate etc?

[Konan555]

I belive I can feel the jump when using better than 95RON despite my engine being totally set for 95 (says in the manual you'll not feel any more).

But I could swear it pinks a little on 85 (mind you, at 10.2:1 it's quite a high compression engine for an old car).

Gonna make a difference on some things (particuly those vehicles with knock sensors etc etc) but in a lot of cases it's a psychological thing and clever advertising.