If you choose the right engine oil for your Triumph Bonneville 1978-, it will extend engine life and allow your Triumph Bonneville 1978- to operate more efficiently.

Newer oil formulations are constantly being developed and engines are being improved over time with the goal to improve performance and efficiency. So, it’s worth periodically checking which one is best suited to your Triumph Bonneville 1978-.

It’s also well worth considering the best gear oil and automatic transmission fluid (ATF) to ensure the smooth running of your Triumph Bonneville 1978-.

Please select the specific type of your Triumph Bonneville 1978- below and we’ll let you know which engine oil and other oils to use.