I use the Morris one (works well - local place sells it) - Castrol Valvemaster is also commonly used. As for the amounts - it says on the bottle.
Steve
unleaded addative
Re: unleaded addative
What's the point when the wear rate is relatively low and heads can be picked up for a few quid! I wouldn't bother.
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Re: unleaded addative
The real advantage is using one with an octane booster. Our cars were designed to run on 4 star which is 99-100RON, regular unleaded is 95. My cars have always run more smoothly as I've been able to run less retarded timing.
Mark
1961 Chevrolet Corvair Greenbrier Sportswagon
1980 Dolomite Sprint project using brand new shell
2009 Mazda MX5 2.0 Sport
2018 Infiniti Q30
1961 Chevrolet Corvair Greenbrier Sportswagon
1980 Dolomite Sprint project using brand new shell
2009 Mazda MX5 2.0 Sport
2018 Infiniti Q30
Re: unleaded addative
I agree with Mark, I use the valvemaster (though an 1850 doesn't need the lead substitute) but you do need to boost the octane.