OFFICIAL Texas sell/trade and spottings chat/thread
i want to change to royal purple synthetic oil. but i hear its not good to change the brand of oil you use because your car gets used to having a certain kind of oil and when you change it your car doesn't know what it is and can mess things up. Thats what happened to some people that brought their cars in to my bf's job
no. if you have been using normal oil and you switch to synthetic its better for the engine. if you have been on synthetic and use a regular oil then thats what ***** up your ****. so once you go synthetic you never go back


