Castol Valvemaster Plus

[dotdog]

Is this the best lead substitute with octane booster for a 1980 webber 308GTB? anyone know?
and where is the cheapest to buy? ta srry cnt spiel prprley CASTROL!
Also does anyone know where to buy Shell helix ultra 5-40 for less than bloomin £12 a liter?

Edited by dotdog on Sunday 17th September 20:51

Edited by dotdog on Sunday 17th September 20:52

Edited by dotdog on Sunday 17th September 21:14

[Dinoboy]

Have used this at every fill up on my 79 308.
No problems at all !

[dotdog]

ta dino, i heard today about a product called tetraboost, which apparently is a direct lead substitute - does anyone have any experience of it?

[andy 308gtb]

When Leaded was first phased out I spoke to Maranello's Egham; they could not confirm whether my car (1980 308GTB) had hardened valve seats.
Consequently, I investigated the lead substitues and concluded that Castrol Valvemaster was the best product. This conclusion was based on the tests conducted by the Federation of Historic British Vehicle Clubs.
However, I have never needed to use it as leaded petrol is not difficult to get hold of (at a price).
Recently on another forum, Maranello's Egham posted up a document that confirmed that my car (and yours) had hardened valve seats & would be fine on unleaded...
I still put Leaded in mine because I do very few miles so the extra cost is really not an issue.

The document from Maranello's can be seen in this link
http://ferrarichat.com/forum/showthre

Hope this helps
Andy

[dotdog]

Cheers Andy, running it on Shell v-power 99 ron with castrol valvemaster plus, and all seems sweet - even a little popping on the overrun - thanks for the confirmation.