Club Triumph

hi ive been using valvoline vr1 engine oil in my mk2 2500 but looking around penrite 20/60 HPR30 gets good reviews do any of you guys use it whats your thoughts on it? also i cant find a supplier in essex for penrite oils, last time i bought 5 litres of VR1 from motex my local motor factors it was £32 this weekend they wanted £44 got them down to £37

When I had problems with the Mk1 PI engine, oil pressure when cold poor and when hot VERY poor/non existent, to see if I could get a bit more mileage before a complete rebuild I tried some Penrite oil.  Can't remember whether it was 20/60 or 40/70.

It picked the oil pressure up to an acceptable level but the astonishing thing was that when we stripped out the crank no5 journal was a total mess - required a 60 thou grind!  

On that recommendation I would always use Penrite in my cars, mind you this is encouraged by their UK base being in the Forest of Dean a couple of miles away from us!

Also they did chuck a bit of cash into the kitty for the Historic Marathon Rally Show of which CT were key supporters.

MUT

Agree with Ted. Use Penrite 20/60 in all my cars. Extra 5/10 psi and all my motors are good.
I find it cheaper to buy a 20 litre drum.
Tony.

I always use HPR50 - 40/70 ... which is utter overkill given no oil is burning I suppose, but seems worth doing in the hot weather.

I use Penrite for the full Zinc content. I have chopped 2 cams out on other oils with little to no zinc. Going well so far!

well it seems to work well for you guys thanks for the response got to find a local supplier now

Well you could always pop over to the Forest of Dean .......... (whistle)

MUT

recon it would be a nice drive to the forest of dean Ted but not an economical way to buy five liters of oil  

For the record, I use Penrite Classic 20/60, since the engine was rebuilt in my 6 in 2010. It has now covered circa 40K, and driven hard, including track days, sprints, RBRR and 10CR. Oil pressure still fantastic. This oil keeps is viscosity really well. I have also tried Millers motorsport oil last year, as a test. It may have been 20/50. Oil pressure not quite as good, and appeared not to keep its viscosity quite as well.

I have now returned to Penrite Classic 20/60.


Cheers.

I use Penrite on Tessa but given the GT6's propensity towards outrageously high oil pressure I prefer something a tad thinner on that.

Quoted from RobPearce

I use Penrite on Tessa but given the GT6's propensity towards outrageously high oil pressure I prefer something a tad thinner on that.

Quoted from TedTaylor

Can't the oil pressure release valve be adjusted?

http://www.classic-oils.net/
http://www.classic-oils.net/Case-of-Penrite-Classic-Light-Medium-or-Heavy-4-x-5-litres-just-108

ultimate stuff is the R 20/60 Syn,  2200 PPM ZDDP

think ye can collect at argos,!!

Geeks, try the 50/70 full fat stuff

M

GT6 M had a look round the classic oil shop its very good with alot of info  

Looking on the Classic Oils website it's amazing how little ZDDP is in the cheaper brews, but also some of the more expensive stuff isn't exactly overloaded with it either!

I've used Valvoline VR1 in my 2500 since the engine was built four years ago and will continue to do so, although the Penrite 20/60 stuff does look good admittedly.

R 20/60 has 2,200 PPM of the stuff.
the ordinary HPR 20/60 has 1600,

well above the VR1 stuff

I found VR1 just dont hold oil pressure after aboot 3-4 K miles
the Penrite stuff does,

M

Does anyone has experience with Millers CSS 20W-60 semi synthetic oil.
Millers recommends this oil especially for TR's, AH etc. for competition or endurance use.

I am currently using Millers Classic Sport 20W-50 semi sythetic oil.
My TR6 has approx. 180 BHP and 10.8:1 CR.
I rev the engine quite regulary to the red line and beyond.

Michael

Hi Michael,

I tried this last year, but may well have been 20/50.

Penrite 20/60 IMHO offers slightly better oil presssure, and holds its viscosity better.  I too, have a tuned TR6 PI.


Cheers.