Best engine oil??

Technical advice Q&A

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RICHOT
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#1 Best engine oil??

Post by RICHOT » Sat Sep 30, 2023 1:35 pm

Hi all,

For the last 30years I have used Castrol 20-50 in both my S1 E type and XK120.
Now I see Motul 20-50 Classic oil being advertised at a very competitive price.

Have any of you had any experience of using the Motul product?

I have no problem in paying the extra for Castrol but if Motul is its equivalent then I may give it a try, depending on any feedback you may have.

Thanks in advance.

Richard
1950 XK120
1965 S1 E Type DHC
1989 Porsche 911 Carrera cabriolet

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chrisfell
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#2 Re: Best engine oil??

Post by chrisfell » Sat Sep 30, 2023 3:38 pm

Loads of threads on this subject. I use my car a lot, and always use semi-synthetic oil formulated for Jags and Astons with flat tappets. It is only marginally more expensive than cooking multi-grade. More important than what oil, is to change it regularly. Change oil every year or 3000 miles, which ever is the sooner. I would never leave oil in an engine for two winters.
Chris '67 S1 2+2

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cactusman
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#3 Re: Best engine oil??

Post by cactusman » Sat Sep 30, 2023 4:13 pm

:yeahthat:
Julian the E-type man
1962 FHC
1966 MGB....fab little car too

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dlgis
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#4 Re: Best engine oil??

Post by dlgis » Sat Sep 30, 2023 5:17 pm

I use Valvoline VR1 Racing 20W-50
Darryl
1964 S1 FHC 3.8 opalescent maroon

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RICHOT
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#5 Re: Best engine oil??

Post by RICHOT » Sat Sep 30, 2023 5:40 pm

Thanks for your replies.

I was sure that there were several threads on engine oil but when I tried to do a search on engine oil, using several different key words, it wouldn't throw up any previous threads for me???

Richard
1950 XK120
1965 S1 E Type DHC
1989 Porsche 911 Carrera cabriolet

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mgcjag
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#6 Re: Best engine oil??

Post by mgcjag » Sat Sep 30, 2023 6:14 pm

You've used Castrol 20/50 for 30 years...has it caused any issues...I doubt it.... Castor.. Halford... Millers... Morris they all work.. what's the problem..ok Motul have it a few quid cheaper.
...Steve
Steve
69 S2 2+2 (just sold) ..Realm C type replica, 1960 xk150fhc

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RICHOT
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#7 Re: Best engine oil??

Post by RICHOT » Sun Oct 01, 2023 8:41 am

Steve, its no problem,

I have always purchased Castrol in their large 20 litre drum, but that is now approaching £200 whereas the Motul is under £100.
I've no issues with Castrol, other than the price!

I was just wondering if their where any downsides in using he cheaper oil which supposedly has the same spec.

And yes, I change the oil & filter every 2years or 2k, whichever is soonest.

Richard
1950 XK120
1965 S1 E Type DHC
1989 Porsche 911 Carrera cabriolet

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malcolm
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#8 Re: Best engine oil??

Post by malcolm » Sun Oct 01, 2023 8:46 am

I've used all the classic 20/50s, no problems, all seem to do the same job. That's on 40,000 miles of driving. I've used Millers, Halfords, valvoline, Castrol, Comma - I really don't think it matters that much. My engine still ticks over at 30 lbs pressure and runs at over 50 when really hot at anything over 2000 revs. Also clean as anything inside (I've looked! :bigrin: )
Malcolm
I only fit in a 2+2, so got one!
1969 Series 2 2+2
2009 Jaguar XF-S
2015 F Type V6 S

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Paul bow
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#9 Re: Best engine oil??

Post by Paul bow » Tue Oct 03, 2023 10:24 pm

Valvoline vr1 20/50.. used this for years excellent oil, was the only oil used at JD Classics, according to the man (Derek) himself, figured if it was good enough for their cars it would certainly be good enough for mine, and redline MT 90 in the g/box, excellent stuff
Previously...S1 OTS E type (sold)
S1 2+2 manual. (Sold)
S2 rhd OTS full resto finished 8/23
S1 3.8 coupe (full restoration yet to start!)

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RICHOT
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#10 Re: Best engine oil??

Post by RICHOT » Thu Oct 05, 2023 5:42 pm

Thanks for all your replies guys.

I’ve just found another 20ltr drum of Castrol 20-50 tucked away in one of my garages!! So no need to consider trying any other oil at the moment!

Richard
1950 XK120
1965 S1 E Type DHC
1989 Porsche 911 Carrera cabriolet

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