Comments on: Vespa PX/Stella/Bajaj gear oil change

By: Nick

Nick — Tue, 28 Jun 2011 00:04:01 +0000

Thanks for the post, it’s awesome. I wanted to clarify something that I just learned. From another website…

Gearbox oil in a Vespa scooter should be changed about every 3000 miles with new SAE 80 gear oil, which is the same as SAE 30 motor oil.This is a constant cause of confusion when buying transmission oil for your scooter. If in doubt remember that oil for car engines is crankcase oil and oil specifically for scooter transmissions is gear oil…

So, keep that in mind when buying oil.

By: John Steele

John Steele — Sat, 09 Oct 2010 20:34:19 +0000

Fantastic instructions. The best oil change instructions yet for PX engines. Especially if your not mechanically minded like me. All questions answered. Many thanks From Johnny in London

By: admin

admin — Fri, 12 Mar 2010 21:04:02 +0000

Thanks for clarifying Jinx. Have yet to take the scoot back out on the road following the change, so I’ll be keeping a close eye on seepage.

By: jinx

jinx — Thu, 11 Mar 2010 19:24:36 +0000

There is a gasket, not a washer, on the drain plug. They used to be dark red and paper based. Copper ones are now available, but they should be replaced with new ones to prevent seepage.

Also a good idea is to flush the system with oil while the drain hole is open, to push out any debris that might not have drained out initially. Just a 5 second squeeze does the trick.

I have added a strong magnet to the tip of my drain plug to capture swarf. That’s optional, but its fairly common practice in modern bikes.