23rd Jul 2021, 08:35
The Corolla engine has a problem with oil consumption. You need to use a fully synthetic oil and keep a tab on the engine oil level after driving it on a long trip or after many short trips. Once every month will be OK if you don't do long trips. If the oil level is low then you should keep a spare oil can nearby to top it off. I learned it the hard way after my engine blew off loudly while on the highway. Always use fully synthetic engine oil.
4th Jun 2021, 02:36
I would suggest if you had to replace a Toyota engine at 48k because of sludge, the reason lies somewhere else, such as lack of servicing, especially oil changes.