irishjake wrote on 09/03/15 at 01:15:04:


In the states one can find Rotella on Amazon.

Best regards,

Near Limerick City but up in the hills of North Tipperary. You should come over to Bikefest next summer😀how do you decide on how much redline to add?I got this email from a specialist oil supplier.       [      People are often overly concerned about ZDDP, if you buy an oil from a reputable company, it will have sufficient anti-wear additives, whether it's ZDDP or a similar chemical. Also, oils contain the correct additives for what they are designed for - a 20w-50 for classic engines will have a higher ZDDP content than a 10w-30 for the latest Hondas.  If you really want a high ZDDP content, go for the Silkolene Pro 4, Silkolene Comp 4, Motul 300V or Red Line oils. ].  

Our bikes are almost 'pre-historic' in terms of the engine design. Especially the top end, where the ZDDP will benefit most.

Off hand, I can't remember how much ZDDP to use, but it's the equivalent to a couple of caps full per oil-change.
The gurus on here will know better  

The main thing is to use an oil without friction modifiers (for use with a wet clutch) or your clutch will start slipping.

I know your area well  
My son lives in Scarriff, Clare, I spend some time every now and then in Cloughjordan, Tipp, I used to work at Crannagh castle, and used to house-sit winters in Balinure/Horse and Jockey area.
I know the pub in Moneygall which is where the Dublin/Limerick bus stops...... and where a certain man called Obama has links  

Next year's Bikefest sounds good to me!  

That Bikefest looks great! Killarney is beautiful with great roads too  

The bridge at Killaloe/Ballina is still a traffic jam?  

Have you tried looking at the oils that the local farmers' co-op (or whatever it's called), worth a try.

HovisPresley wrote on 09/03/15 at 09:12:01:


I think I put 60 mls in a gallon of Rot.  Wait, that seems high.  Have to check when I get home  

I'm over in Liverpool and when I was looking at suitable oil aviaible in the UK I came up with the following:


Mobil Racing 4T (expensive!)
Valvoline VR1 (half the price of the Mobil)

Both of the above have high ZDDP content, but if you need any more:

Eastwood ZDDP additive (ebay.co.uk)

Hope this helps

irishjake wrote on 09/06/15 at 00:32:40:


No I haven't used VR1 - I have Mobil T4 racing in the bike at the moment.

irishjake wrote on 09/06/15 at 08:07:08:


That should be fine. The guys in the know here seem to recommend anything between 1200 - 1800 ppm or even higher - but I am sure someone will come along to correct me if I am wrong on this.