Leaded or unleaded?

[VolksPikey]

Sorry if it's been asked a million times before, but my knowledge of this era of car is pretty shallow.

I've got a 1990 318i, what's the best fuel to run it on or would it have been unleaded from the factory?

Thanks.

[Cloud]

Unleaded from factory.
95RON is good, I sometimes use the "Super" or "Premium" stuff which is 98RON.

[Nay]

Wow, that was simple....

[BMracing]

You won't get ANY advantage from running your car on higer octane fuel.

[Cloud]

You won't get ANY advantage from running your car on higer octane fuel.

I was gonna say, I never notice a difference.

[VolksPikey]

Thank-you. I've always driven classics (leaded) before so not having to put some pissy additive in is a departure for me.

Cheers guys.

[Alex]

my local asda still sells leaded petrol 4 star stuff

[town325i]

my local asda still sells leaded petrol 4 star stuff

no it wont it will sell lrp 4 star was banned by the government years ago

[Cloud]

My Capri runs on Five Star. That's been illegal for more than 20 year.

[Sawyer_E30]

Thank-you. I've always driven classics (leaded) before so not having to put some pissy additive in is a departure for me.

Cheers guys.

I used to use additives in my 316 with m10 engine, and even if you strictly use 'em in the end nothing but real 4 star keeps the valves safe!

[Alex]

my local asda still sells leaded petrol 4 star stuff

no it wont it will sell lrp 4 star was banned by the government years ago

theres me thinking it was the same thing

why was 4 star banned sounds dangerous

[fuzzy]

isnt the 4 star LRP ?(lead replacement ) you can still get it for older cars .

[Alex]

im confused

[fuzzy]

in the old days you got leaded 4 star and unleaded, they phazed out the leaded but substituted LRP in its place so older cars could still run as they wouldnt on unleaded. in the even older days i think you got 5 star but thats before my time.

[Alex]

[Ollie_bwoii]

What does a M10 in an E30 run on then??

[Alex]

What does a M10 in an E30 run on then??

anything that explodes when ignighted


unleaded, my 316 had a sticker in engine bay saying designed to run on unleaded ron 95

[Sawyer_E30]

What does a M10 in an E30 run on then??

anything that explodes when ignighted


unleaded, my 316 had a sticker in engine bay saying designed to run on unleaded ron 95

That's not far the truth. Good little engines, that's probably why they lasted so long in BMW production line!

[capri_rob]

You can still buy leaded 4 star but only from some specialist outlets

http://www.leadedpetrol.co.uk/

[maxfield]

What does a M10 in an E30 run on then??

anything that explodes when ignighted


unleaded, my 316 had a sticker in engine bay saying designed to run on unleaded ron 95

That's not far the truth. Good little engines, that's probably why they lasted so long in BMW production line!

Not far from being the best engine BMW ever made!

1500hp came from that block!

[Alex]

i would love to build a high power 6 pot killer m10

yes i know it wont be cost effective and an engine converion will give you better bang per buck

[maxfield]

i would love to build a high power 6 pot killer m10

I've cock snotted over the thought once or twice.

100hp/l can be had from these engines.

[Alex]

im sure you can bore them out to a 2.3/2.5 too

[maxfield]

I don't see why not, AFAIK you can put an M3 crank in an M10.

[Alex]

think they have different water channels/ways what ever you call em