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Leaded or unleaded?
Posted: Sun Dec 14, 2008 6:24 pm
by 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.
Re: Leaded or unleaded?
Posted: Sun Dec 14, 2008 6:26 pm
by Cloud
Unleaded from factory.
95RON is good, I sometimes use the "Super" or "Premium" stuff which is 98RON.
Re: Leaded or unleaded?
Posted: Sun Dec 14, 2008 6:28 pm
by Nay
Wow, that was simple....
Posted: Sun Dec 14, 2008 6:50 pm
by BMracing
You won't get ANY advantage from running your car on higer octane fuel.
Posted: Sun Dec 14, 2008 6:53 pm
by Cloud
BMracing wrote:You won't get ANY advantage from running your car on higer octane fuel.
I was gonna say, I never notice a difference.
Re:
Posted: Sun Dec 14, 2008 7:07 pm
by 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.
Re:
Posted: Sun Dec 14, 2008 7:20 pm
by Alex
my local asda still sells leaded petrol 4 star stuff
Re:
Posted: Sun Dec 14, 2008 7:26 pm
by town325i
Alex wrote: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
Re:
Posted: Sun Dec 14, 2008 7:29 pm
by Cloud
My Capri runs on Five Star. That's been illegal for more than 20 year.
Re:
Posted: Sun Dec 14, 2008 7:34 pm
by Sawyer_E30
VolksPikey wrote: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!
Re:
Posted: Sun Dec 14, 2008 7:56 pm
by Alex
town325i wrote:Alex wrote: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
Re:
Posted: Sun Dec 14, 2008 7:59 pm
by fuzzy
isnt the 4 star LRP ?(lead replacement ) you can still get it for older cars .
Re:
Posted: Sun Dec 14, 2008 8:01 pm
by Alex
im confused
Re:
Posted: Sun Dec 14, 2008 8:04 pm
by 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.
Re:
Posted: Sun Dec 14, 2008 8:12 pm
by Alex
Re:
Posted: Sun Dec 14, 2008 8:13 pm
by Ollie_bwoii
Re:
Posted: Sun Dec 14, 2008 8:16 pm
by Alex
anything that explodes when ignighted
unleaded, my 316 had a sticker in engine bay saying designed to run on unleaded ron 95
Re:
Posted: Sun Dec 14, 2008 8:28 pm
by Sawyer_E30
Alex wrote:
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!
Re:
Posted: Sun Dec 14, 2008 8:35 pm
by capri_rob
You can still buy leaded 4 star but only from some specialist outlets
http://www.leadedpetrol.co.uk/ 
Re:
Posted: Sun Dec 14, 2008 8:36 pm
by maxfield
Sawyer_E30 wrote:Alex wrote:
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!
Re:
Posted: Sun Dec 14, 2008 8:39 pm
by 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
Re:
Posted: Sun Dec 14, 2008 8:40 pm
by maxfield
Alex wrote: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.
Re:
Posted: Sun Dec 14, 2008 8:42 pm
by Alex
im sure you can bore them out to a 2.3/2.5 too
Re:
Posted: Sun Dec 14, 2008 8:44 pm
by maxfield
I don't see why not, AFAIK you can put an M3 crank in an M10.
Re:
Posted: Sun Dec 14, 2008 8:46 pm
by Alex
think they have different water channels/ways what ever you call em
