Castrol Syntrans B 75W: Back in stock at Opie Oils

As I expect some of you with BMWs may have noticed, there have been supply issues for the Castrol Syntrans B 75W over the past 6 months or so. Well, we are pleased to announce that the drought is officially over and we have it back on the shelf and ready to go!



Castrol Syntrans B 75W is a fully synthetic gearbox oil designed specifically for manual gearboxes used in BMW passenger cars. Does your BMW require the API GL-4 or ZF TE-ML 11 specifications? If so, then look no further as this is the stuff you need. In fact, we recommend this for pretty much every BMW manual box since about 2004 – excluding a couple of specifics of course.



  • Excellent gear and bearing protection critical for in-line transmission performance
  • Exceptional cold flow properties giving smoother gear shift at low temperatures
  • High shear stability, giving a constant viscosity during oil life
  • Excellent thermal and oxidative stability for transmission cleanliness, longer oil life and seal protection

This fantastic product is available from as little as £17.95 per litre, and there are even better savings to be had – for example, a 5 litre bundle of this comes in at £74.95, making it just £14.99 per litre!

At Opie Oils, we have the UKs largest online selection of Castrol gear oils, differential oils and ATFs, so it’s definitely worth having a look.

Don’t forget, if you’re thinking of changing your gearbox oil, we also offer a huge variety of engine oil and filter service kits that are tailored specifically to your vehicle, with prices starting from as little as £17.99. These bespoke kits make an oil change an easy and mess free job as you will receive a free disposable funnel, gloves and handy wipes, as well as an OEM quality oil filter and the correct amount of the correct oil. Just CLICK HERE for our look up guide and start entering your vehicle details to find the kit for you.

If there’s anything else you need, from advice on the correct engine oil, diff oil, gear oil or coolant, to choosing Brembo brake parts or spark plugs – we’ve got it covered, just give us a call on 01209 202 944 8:30 – 5:30 Monday to Friday, or drop us an email on we’ll be happy to help!

Until next time,


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