I don’t think there are going to be any more club motorsport events this year, but we can hope. MOT Trackdays who ran the day have got lots more events this year. I’m booked on for the evening event at Donnington Park on the 25th of July. The MX-5 Europe group are promoting it as a group track day. It’s not MX-5 exclusive but there should be a good few there.
I use Miller’s 10w40 just for peace of mind and I don’t drive the car in winter so I don’t need the cold weather protection of 5w30 oil
If there are no more OC events this year it will be a shame but i will definately be keeping an eye out for some other events to get too.
Blyton was a riot and we loved it.
Lovely to meet you on Saturday and share some track time with you “both ways”, David! You were going really well and I loved how fun your standard car is. A peppy puppy indeed 
Glad you enjoyed it and hopefully see you again sometime!
A good quality fully synth 5w40 (about £8-10 a litre) would get my vote if you do feel the need for freah oil👍the lifters may well calm down again now after some normal driving though.