Jump to content
Click here if you are having website access problems ×

Oil for a Duratec 2.0

Bob and Carol

Recommended Posts

Just ask Opie for a recommendation Bob. Your car only came with a recommendation for Motul because that's who CC have a deal with at the moment. 

When I bought my car it was Comma, then it was Millers, who were superseded by Motul. 

I've used Millers Nano CFS for some time without any issues but Opie will give you a good steer.




Link to comment
Share on other sites

As Scott has already said yours has Motul because thats the best deal for CC. My 2005 CSR runs Comma 5w-50 Motorsport oil because thats what it got given at "birth" so to speak. My late father (who had the car for 12 years) never deviated from the original oil. But any decent oil of the same spec should be fine. 

Link to comment
Share on other sites

I dropped a message over to Opie oils technical dept to ask their advice.

My thoughts on using a 10w60 were for ultimate protection at high temperatures on track. They agreed would be safe around and beyond 125 degrees. However they also suggested that a 5w50 would effectively flow around the engine more easily and actually remove more heat which was interesting. It would also perform better during initial startup. 
I have an oil to coolant heat exchanger which warms my oil very quickly so this part doesn't concern me too much. 

But it's all food for thought. 


Link to comment
Share on other sites

When I started looking at a replacement for the Motul Sport 5w-50 Fully Ester Synthetic, I emailed Caterham as I thought best to ask them so to keep within the warranty of the car as it is only just over one year old. As with all the emails I have sent to Caterham, no reply, same with the garage that supplied the car to me, hay-ho.

Hence the start of this post.

Listed in Caterham’s 420 workshop manual that I found using Goggle, was Millers Oils XF LongLife 5w-50 Fully Synthetic (Formerly XFS) and another listed was also a 5W-50 oil, so I thought that was the grade to stay with and fits in nicely (although I didn’t know that at the time) with what 22daz documented in #11 about using a 5w.

I liked the idea of keeping the Ester part of the oil that was in the Motul Sport 5w-50 Ester Synthetic as I have been told Ester withstands higher temperatures and clings to metal surfaces. I thought this would work well with how I use the car, i.e. long spells between engine starts then maximum load and revs when I do as I only use the car for track days.

When I changed the oil for the second time having done just under 1000 miles, I was surprised at how dark the colour was giving me the impression it had been under stress in its short life, so have gone for the grade higher than the Millers Oils XF (as listed in the 420 workshop manual) and the one Opie Oils recommended being the best of the best, Millers Oils EE Performance 5w-50 Fully Synthetic Engine Oil

It has just turned up this morning and I was pleased to read “recommended by Caterham”


I would add that I know nothing really about oil and only document the above should it help others.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...