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Vintage Cars/1971 ots e-type oil


just put my 1971 ots back together and want to ensure I use the right oil. What should I use? And, do I really have to take off the oil pan to change the oil?

Can answer one, not the second...

A quick check says that 20W50 is standard for all 6-cylinder E-types, e.g. Castrol GTX. Some owners use 10W40 (probably fine for cooler climates), and some 5W50 synthetic (but that might blow through old seals faster and cause leaks). You'll need about 8 qts (US). Whichever you use, I would add a bottle of ZDDP (aka "zinc", available as ZDDPlus from Moss Motors and others) to replace the zinc that has been phased out from most oils. It might be unnecessary (no-one really knows), but it won't do any harm.

I don't know the E-type personally, but I can't imagine that you need to drop the oil pan. JCNA forums is the place to find out definitely:


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Jo Jesty


Most detailed about Austin Healeys but also MGs (A,B,C), old Minis, old Volvos: they share SU carbs, Lucas (Prince of Darkness!) ignition, Girling brakes & shocks. Some things shared with TRs too, but I don't know so much about them. Can advise the semi-neophyte on the basics of keeping things running, especially tuning ignition and carbs; but no rebuilding engines or transmissions; no frame or bodywork. General date range: late 50s to 70s (not so good about cars with emission controls, electronics). No valuation experience at all.


Middling: I am not an auto mechanic. (Should we stop right here?) Grew up In England and a workshop. I have had a 3-carb 60/61 Healey for ca. 8 years, largely looked after myself. New fuel system and carbs, resuscitated ignition, brakes (discs and drum). Great driver's car. Major jobs done by others: king pins, front frame cancer excision; caliper rebuild; etc. Organizations.: Austin Healey Sports & Touring Car Club (PA) Publications: > 70, irrelevant Education/Credentials: PhD, irrelevant Awards and Honors: irrelevant Languages: Je peux essayer francais...

Re. cars, none--see experience.

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