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Author Topic: 4 star petrol for classic car.pic added.  (Read 1800 times)

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feeutfo

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4 star petrol for classic car.pic added.
« on: 20 August 2008, 12:42:26 »

where do get the stuff? Or do you have to use an additive to usual unleaded?
« Last Edit: 22 August 2008, 11:16:40 by chrisgixer »
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Lazydocker

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Re: 4 star petrol for classic car.
« Reply #1 on: 20 August 2008, 12:44:51 »

I think you have to use an additive :y :y :y
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tmx

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Re: 4 star petrol for classic car.
« Reply #2 on: 20 August 2008, 12:48:10 »

hereford has 2 petrol stations that sell the LRP stuff

Sainsburys used to but our local one has stopped!

the garages that sell it though are independant garages but there must be some round berkshire!
« Last Edit: 20 August 2008, 12:48:58 by tmx »
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feeutfo

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Re: 4 star petrol for classic car.
« Reply #3 on: 20 August 2008, 13:01:04 »

it for my Dad in Epsom, sorry should have said. He has a rover v8(i thinki its that anyway)  in a 2 seater morgan style chasis. Sounds good, not much go though, but you do feel  like your going twice as fast for half the speed.
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HerefordElite

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Re: 4 star petrol for classic car.
« Reply #4 on: 20 August 2008, 13:17:19 »

Quote
it for my Dad in Epsom, sorry should have said. He has a rover v8(i thinki its that anyway)  in a 2 seater morgan style chasis. Sounds good, not much go though, but you do feel  like your going twice as fast for half the speed.


that'll be the open top arse closer to the ground factor :y
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Kevin Wood

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Re: 4 star petrol for classic car.
« Reply #5 on: 20 August 2008, 13:25:08 »

I may be wrong, but I believe all Rover V8s are Ok on unleaded.

If the octane is an issue, you can use Super unleaded, add an octane booster or just try it and back off the timing a couple of degrees if it pinks.

Kevin
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Kevin Wood

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Re: 4 star petrol for classic car.
« Reply #6 on: 20 August 2008, 13:28:11 »

Incidentally, I did pass a garage the other day advertising leaded 4 star. Can't for the life of me remember where it was though.  :-/

This link might help http://www.leadedpetrol.co.uk/. They show one in Romsey. That might have been the one. So, Epsom to Romsey is about 1/2 a tank there and 1/2 a tank back.  ;D

Kevin
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tmx

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Re: 4 star petrol for classic car.
« Reply #7 on: 20 August 2008, 14:08:51 »

my p6 v8 runs fine on unleaded it was already set up but id assume you just need to fiddle with the timing!

myn runs fine though pulls well but myn is the old 3.5 v8
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Martin_1962

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Re: 4 star petrol for classic car.
« Reply #8 on: 20 August 2008, 15:16:58 »

Valves - get hardened valves and seats or use flashlube

Compression use 97 or 99 octane
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Re: 4 star petrol for classic car.
« Reply #9 on: 20 August 2008, 17:25:28 »

Try Sainsburys, quite a few have it ;)
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kris9128

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Re: 4 star petrol for classic car.
« Reply #10 on: 20 August 2008, 17:29:57 »

check this site out mate http://www.leadedpetrol.co.uk/list.htm  :y :y
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Re: 4 star petrol for classic car.
« Reply #11 on: 20 August 2008, 19:43:47 »

Quote
I may be wrong, but I believe all Rover V8s are Ok on unleaded.

If the octane is an issue, you can use Super unleaded, add an octane booster or just try it and back off the timing a couple of degrees if it pinks.

Kevin

My Rangie ran fine on it :y :y :y

Exactly as I did... Although then I changed the timing again to suit LPG ::) ::)
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Omegatoy

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Re: 4 star petrol for classic car.
« Reply #12 on: 20 August 2008, 20:24:59 »

ran my twin turbo SDI V8 on unleaded for thousands of miles as the heads are aluminium, they have to have a hard valve seat in them!! :y

Marks DTM Calib

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Re: 4 star petrol for classic car.
« Reply #13 on: 20 August 2008, 20:39:48 »

The Rover V8 had hardened seats as of October 1970, before this only the low compression power plants (8.25:1 - Note compression ratio is stamped next to the engine no) were unleaded capable (designed to run on 94 RON!).
« Last Edit: 20 August 2008, 20:49:49 by Mark »
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HerefordElite

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Re: 4 star petrol for classic car.
« Reply #14 on: 20 August 2008, 21:41:27 »

Quote
The Rover V8 had hardened seats as of October 1970, before this only the low compression power plants (8.25:1 - Note compression ratio is stamped next to the engine no) were unleaded capable (designed to run on 94 RON!).

expains the pathetic specific power output ;)
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