I drove a 1970 MGB GT for 8 years through rain, sleet, and snow. I was not
gentle with the engine having had a Maserati Biturbo for 6 years and a 1968
Maserati Mistrale for pouncing around. When the car was laid up for a
rebuild the engine was as strong as a horse and no signs of VSR. I tested
Shell gas for a year in my rebuilt Austin Healey and Shell made a special
measuring device - No VSR there either although I did not trash the engine
but I did Vroom Vroom.
At 10:40 AM 5/10/00 -0700, Max Heim wrote:
>VSR = valve seat recession, the consequence of using unleaded fuel in a
>engine designed for leaded fuel.
>
>Though I would suspect that most Bs at this point in their lives have
>been treated to a head rebuild with new valve seats, and that unleaded
>fuel is not an issue.
>
>Dave Wood had this to say:
>
>>Scotty,
>>
>>I've been adding a lead replacement to my 72 B since they quit selling
>>leaded fuel in the States. The additive in not lead, it is something
>>presumably less toxic to people and the environment but accomplishes the
>>same valve lubrication that the older cars need. I suspect that listers
>>will come up with some suitable definitions of VSR. I can think of some,
>>but none printable. So, what is a bowser?
>>
>>Dave 72 B
>>
>>-----Original Message-----
>>From: Scotty <scotty@dove.net.au>
>>To: mg-mmm <mg-mmm@autox.team.net>; mg's <mgs@autox.team.net>
>>Date: Tuesday, May 09, 2000 7:42 AM
>>Subject: Question about fuel additive-VSR
>>
>>
>>>G'day All,
>>> our local motoring organisation has just informed us in
>>>South Australia that leaded fuel will be phased out by January 1st, 2002.
>>>LRP [lead replacement petrol] will be available soon from some petrol
>>>stations.
>>>However, here's the bit they didn't elaborate on.
>>>Quote---It's feasible that when the number of pre '86 vehicles falls to a
>>>level where it's no longer viable for oil companies to dedicate bowsers on
>>>service stations to LRP owners of these cars will have to empty a bottle of
>>>VSR additive into their tank when they fill up with Premium unleaded
>>petrol.
>>>
>>>The mystery is 'what is VSR ?'
>>>Inquiring minds need to know.
>>>
>>>Scotty,
>>>Adelaide, Australia.
>>>
>>>
>>
>>
>
>
>--
>
>Max Heim
>'66 MGB GHN3L76149
>If you're near Mountain View, CA,
>it's the red one with the silver bootlid.
>
>
Regards
Barrie Robinson
barrier@bconnex.net
|