I have a 2024 Bajaj Pulsar 150 and I'm not sure what oil to use for the next change. The manual says SAE 10W-40 but I see there are all kinds at the shops. Do you recommend a specific brand or is any one that meets those specs fine?
The manual already gives you the answer, so that's settled. Now, within that SAE 10W-40 specification there's a difference between basic mineral oil and synthetic or semi-synthetic oil, and that's where it's actually worth not being cheap. Synthetic oil lasts longer between changes, protects your engine better during cold starts (important if your bike is in a cold area) and handles high temperatures better. Reliable local brands work perfectly fine, you don't need some fancy imported one, but avoid the cheapest options from sketchy sources because your bike will make you pay for it later.
If the manual says SAE 10W-40, that's your starting point and honestly there's not much mystery to it. Any oil that meets that specification is going to work fine for you, you don't need a premium brand or anything fancy. What matters is that it's genuine and from a reliable place, because there's a lot of fake oil floating around out there, especially in sketchy online shops. Make sure the container is properly sealed and the label has all the info clear.
Among common brands like Castrol, Motul, Shell or even Bajaj's own brands, they all work if they meet the specification. I'd say what makes the difference is changing the oil regularly according to what your manual says, rather than obsessing over which brand it is. 150cc bikes aren't picky about this. If your usual shop sells any decent brand at a good price that meets SAE 10W-40, that'll do the job. Check the level every so often and you're good.
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