AndyXV Posted June 7, 2020 Share Posted June 7, 2020 Hi all I have recently upgraded from my R Sport to a gb270 Just wondering what engine oil I should be looking at It’s got a forged engine running around 360bhp Cheers Sent from my iphone using Tapatalk Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted June 8, 2020 Share Posted June 8, 2020 Oil brand wise I always use millers oil grade wise the subject is normally a can of worms tbh lol . If there's anything in the s/h saying what grade it's been running on previously I'd stick with that . Otherwise Standard bug onwards most use 5w30 and for classics 10 w 40 . Being forged I'd probably suggest 10 w 40 ,as most forged pistons run looser clearances and the slightly thicker oil will protect the bores /pistons until up to temp and the clearances close up a bit . 1 1 Quote Link to comment Share on other sites More sharing options...
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