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<blockquote data-quote="bikejunkie223" data-source="post: 1229376" data-attributes="member: 563147"><p>Synthetic oil is a joke for 90% of cars on the road. The only real difference is that on the molecular level all the oil molecules are the same size, and it has some additional detergents. The marketing hype has caused people to believe it&#039;s better. We just had a Mobil 1 rep pitch us to sell his stuff saying it makes an engine last longer, but we have a lot of Hondas that come into our shop with over 250,000 miles on them and running perfect, is&nbsp; synthetic gonna improve that? He didn&#039;t have an answer because there isn&#039;t one. For extremely high performance engines (race cars- not your CRX with a fart pipe) or extremely demanding climates where you need ultra-low viscocity or a special blend (75w-90) synthetic is a waste of money. It won&#039;t hurt anything, but it won&#039;t help either- it&#039;s just oil. The same goes for premium fuel. Unless your engine has high compression, or a turbo or something, premium is a waste of money- your car will not &quot;run better&quot; with it. All octane is is a resistance to detonation (pinging) so if your car doesn&#039;t ping on regular than don&#039;t waste your cash on premium. I had a gas station attendant tell me it &quot;makes the VTEC work better&quot; Given that I am a Master Honda Tech, I am reasonably sure fuel has NOTHING to do with a computer controlling a solenoid to allow oil pressure to shift pins to put the cam into a higher profile. Marketing hype has your brains! Wake up and smell the hype! Sorry for that rant, this stuff gets me jacked up.</p></blockquote><p></p>

[QUOTE="bikejunkie223, post: 1229376, member: 563147"] Synthetic oil is a joke for 90% of cars on the road. The only real difference is that on the molecular level all the oil molecules are the same size, and it has some additional detergents. The marketing hype has caused people to believe it's better. We just had a Mobil 1 rep pitch us to sell his stuff saying it makes an engine last longer, but we have a lot of Hondas that come into our shop with over 250,000 miles on them and running perfect, is synthetic gonna improve that? He didn't have an answer because there isn't one. For extremely high performance engines (race cars- not your CRX with a fart pipe) or extremely demanding climates where you need ultra-low viscocity or a special blend (75w-90) synthetic is a waste of money. It won't hurt anything, but it won't help either- it's just oil. The same goes for premium fuel. Unless your engine has high compression, or a turbo or something, premium is a waste of money- your car will not "run better" with it. All octane is is a resistance to detonation (pinging) so if your car doesn't ping on regular than don't waste your cash on premium. I had a gas station attendant tell me it "makes the VTEC work better" Given that I am a Master Honda Tech, I am reasonably sure fuel has NOTHING to do with a computer controlling a solenoid to allow oil pressure to shift pins to put the cam into a higher profile. Marketing hype has your brains! Wake up and smell the hype! Sorry for that rant, this stuff gets me jacked up. [/QUOTE]

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