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<blockquote data-quote="89montero" data-source="post: 2888939" data-attributes="member: 572381"><p>I normally just get my oil changed at jiffylube with regular oil every 3k miles. I was planning on just doing my own changes, never really felt comfortable letting those guys mess with my car.</p><p></p><p>I wanted to try synthetic oil but someone said once you switch to synthetic it's bad for the engine to switch back to regular. Is this true?</p><p></p><p>How often do you change oil with synthetic, is it the same as regular? I was planning on using royal purple.</p></blockquote><p></p>
[QUOTE="89montero, post: 2888939, member: 572381"] I normally just get my oil changed at jiffylube with regular oil every 3k miles. I was planning on just doing my own changes, never really felt comfortable letting those guys mess with my car. I wanted to try synthetic oil but someone said once you switch to synthetic it's bad for the engine to switch back to regular. Is this true? How often do you change oil with synthetic, is it the same as regular? I was planning on using royal purple. [/QUOTE]
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