oil

My local Tescos is selling Castrol Power 1 10W-40 4T SL oil for £3.12 a litre, down from £12.47. My 1150 GSA currently uses Castrol 20W-50 Activo and burns the usual amount. My questions are: 1. Would the 10W-40 be okay? 2. Will the bike burn a lot more due to the thinner consistency? 3. Given...

Hi all, happy new year! Newbie to this forum as a proud owner of a 2010 f650gs twin. To make a long miserable story short, rounded off my oil drain bolt socket. Have no idea how I will ever get it off, having tried most things suggested on this and other forums. Trying to deal with this in...

Hi all, I know this has been all over the internet, yet I need to clarify on one thing before I mess another sight glass up. From your experience - did you use any lubricant / sealant to help the sight glass slip / remain sealed on an older bike (namely R1150GS in this case)? Most sources say...

My F650GS Twin has very slight leak (a seep really) on the left (nearside) of the engine. The source is not visible without removing at least some of the plastics but it comes from very near the top of the engine, possibly towards the front. It's so slight the oil level hasn't dropped in over...

Apologies if this turns out to be a numpty question - when it was asked of me I was sort of "eh?" I'm about to do a month long tour through Europe on my 800GS that will end up being around 6,000miles. I'm riding with a mate of mine who will be on his 1150GS and he asked me "what's your oils...