[Mgs] Petrol

[dave northrup]

These engines cost a lot to rebuild.  Regular is probably too low.  I just run premium to make sure they get enough octane, and don't burn enough that it’s a serious financial issue.  

-----Original Message-----
From: Mgs <mgs-bounces at autox.team.net> On Behalf Of Max Heim
Sent: Wednesday, September 20, 2023 1:33 PM
To: mglist <mgs at autox.team.net>
Subject: Re: [Mgs] Petrol

I am using premium exclusively in my '66 B. It has a Gold Seal motor in 18GB spec with approx. 95K miles, and a fresh head (<10K miles). “Premium” around here is 91 octane with 10% ethanol, so it still pings occasionally on hills. I’m running a newly reconditioned points distributor, and trying to dial in the optimal timing.

Later models with low compression engines might very well run on regular.

--
Max Heim
'66 MGB
Sunnyvale, CA


> On Sep 20, 2023, at 8:32 AM, i erbs <eyera3000 at gmail.com> wrote:
> 
> I just got my B running for the first time and have a newbie question. I have looked online and got confusing answers.
> What grade petrol do I use? Must I use premium grade? Can I use regular?
> Thanks.
> 
> Ira Erbs
> Milwaukie, OR
> 1959 Austin Healey 100-6
> 1967 MGB Roadster
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