Today, the maintenance technician suggested switching to Shell's Yellow Bottle motor oil, mentioning that Castrol's oil with cleaning features might cause more oil leaks. Has anyone used lower-quality oil before? Is it usable?

For a Mazda 3 with a 1.6L engine, you typically want to choose a high-quality engine oil to ensure optimal performance and longevity. Many users often recommend brands like Mobil 1, Castrol, or Shell. As for the viscosity, a common choice is 5W-30, but it's important to refer to your vehicle's owner's manual for the recommended specifications.

Today, the maintenance technician suggested switching to Shell's Yellow Bottle motor oil, mentioning that Castrol's oil with cleaning features might cause more oil leaks. Has anyone used lower-quality oil before? Is it usable?

I changed the transmission oil at 40,000 km at the 4S shop, and now at 100,000 km, I'm planning to replace it for the second time. I'm considering using Shell CVT transmission oil. Has anyone tried it? Is it okay to just clean the metal filter?

Is it necessary to fix the issue if the oil level drops to the lower limit on the dipstick after 5,000 kilometers? Why is there oil leaking from the pipe and turbo area at the back? Has anyone else experienced this problem? The mechanic suggests replacing the oil separator. The car has 60,000 kilometers.

For the 2011 VW Touran with a manual transmission, it's generally recommended to use high-quality engine oil that meets the manufacturer's specifications. A popular choice is synthetic engine oil from brands like Castrol, Mobil 1, or Shell. Always ensure the oil meets the VW 502.00 specification for optimal performance.

Hey fellow car enthusiasts, I've switched to Shell Helix Ultra 5W-40 motor oil, but now the acceleration feels sluggish and the idle is higher. Has anyone else experienced the same issue? I was hoping to upgrade to better oil, but it seems to have backfired.

Which is better for fully synthetic motor oil, Castrol or Mobil?