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MG Car Repair/Oil Additives


Hi Barrie,

Do you have any experience in using this product (additive to engine oil to improve viscosity and running and noise of engine)? It certainly has good reviews especially in old cars, but I was wondering if it is popular in MG ranks.

Many thanks.

Hi Pierre

I have no experience or feedback regarding the use of additives in my engine oil.  

My attitude is, buy a good quality multigrade oil designed for older cars, because it will have all the necessary additives.  I use Penrite, Comma and Duckhams.

Why would I want to add more additives?  

What does "improve the viscosity" mean?  Make it thicker?  Make it thinner?

Why would an additive improve "the running or the noise" of the engine?

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Barrie Jones


MG Sports Cars from 1949 to 1980 - Including MGB, MGBGT V8, TF1500, TF, TD and modern Midgets. I also specialise in SU carburettors, Lucas wiring, suspension, steering & brakes.


I have owned my 1955 TF1500 since 1966. Technical specialist for the TD and TF with the MG Car Club T Register. Also owned 20 MGBs and currently own an MGBGT V8. Written 3 books on MGs and produced a DVD on how to strip and rebuild the TD/TF gearbox.

MG Car Club.

Barrie's Notes on the 1953-55 MG TF (author). /=====/ Barrie's Notes on the MGB (author). /=====/ Barrie's Notes on the MGB GT V8 (author). /=====/ The Essential Buyer's Guide to the MG TD, TF and TF1500. (author)

M Phil, C Eng, BSc (Eng).

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