Not every 1.8 vvti 1ZZ-FE engine had the oil burning issue. It could be some engines were fine, some were ran in a way that kept the problem away, some had the block and pistons changed, some had engine swap for a modified engine and some engines had the problem that the owners just topped up oil continuously. If the engine has been changed, it should be shown on the registration document, and any records or paperwork, if available. Some owners may hide the fact the engine is burning oil. T