Markymark Posted March 14, 2017 Report Share Posted March 14, 2017 (edited) Hi all I need to top up my engine oil on a BMC 1.5, I've been told use 15/40 mineral is that correct? Thanks in advance Markymark Edited March 14, 2017 by Markymark Link to comment Share on other sites More sharing options...
Glynn Posted March 14, 2017 Report Share Posted March 14, 2017 20/50 was commonly used when fitted in cars/vans etc. Link to comment Share on other sites More sharing options...
peterboat Posted March 14, 2017 Report Share Posted March 14, 2017 Same here its a very very very old engine 15/40 wasnt on the go it was 20/50 or straight oils Link to comment Share on other sites More sharing options...
Richard T Posted March 14, 2017 Report Share Posted March 14, 2017 Look at the API rating for the oil. CC or CD is acceptable as to viscosity etc 15/40 or 20/50. B&Q did do it at a decent price but I haven't looked for any recently. Morris oils sell it by the 25ltr drum. Link to comment Share on other sites More sharing options...
alvicchas1 Posted March 17, 2017 Report Share Posted March 17, 2017 There is a good offer on ebay at present. Unipart 20W50 Mineral Classic Engine Oil £11.98 for 5 litres with free delivery. This is a suitable grade for a BMC 1500 and very cheap for a quality oil. Link to comment Share on other sites More sharing options...
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