Unleaded

[whitemice]

http://www.classicmotor.co.uk/unlead2.htm

[robbie.cee]

Wow that's quite a read Mark !

[whitemice]

There are a few other interesting links lower down that one about the subject too.

No mention in them days of the hassle with ethanol in the petrol these days though.

[whitemice]

One of the main things to do as part of regular routine maintenance is valve clearance checks whether noisy or not, they will indicate any recession occurring, as well as compression checks, i do both yearly on the V6.

[whitemice]

This is the base elements for most of the lead replacement additives out there.

Phosphorus.......................Motul...castrol valvemaster....STP

Potassium........................Nulon....redex......millenium.....morris

Manganese........................wynns....millers......carplan/carlube.......

Sodium............................redline

Out of all of it redline Sodium base is the most interesting and i'm going to experiment with it having scored 3x335ml ie. just over a litre at a price that beats the millenium i currently use in my fuel mixes for economy and the claim of equivalence to 3 --5gm of lead per gallon according to dose is better than the pre 2000 tetraethyl lead content which had been reduced to about 1.5gm from memory? ............ I'll use up the millenium i've got then check valve clearances and start a test regime.

Millers is too uneconomical to my mind, although they seem to be addressing the ethanol issues, not too keen on the idea of manganese either.

For potassium base the nulon is cheap and better than nothing and the re-formulated morris stuff looks reasonable too.

phosphorous old valvemaster can be got for £8 here http://www.bighealey.co.uk/sitemap

[robbie.cee]

Manganese was used to treat Drinking water but they stopped using it when they discovered it had a viagra effect on men

[whitemice]

Manganese was used to treat Drinking water but they stopped using it when they discovered it had a viagra effect on men

That explains everything, i thought i was getting stronger now that i don't need two hands to hold it Rob.