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Conventional will work fine. If you're changing your oil every 3750 miles, it's pretty pointless to run synthetic anyway, it's more of a waste of money. A good conventional oil will perform just as well as a synthetic for those short oil change intervals.
But hey, it's your money. If putting synthetic oil in your engine makes you sleep better than night, then by all means, go for it.
BTW, if anyone thinks otherwise, please post some used oil analysis results as proof.
mike
Agreed, if you change your oil every 3750 conventional oil will do fine. By why change your oil so often? The primary reason for using synthetic oil is extended drain intervals. 7500 miles is nothing for a good synthetic.
but it makes you feel good inside knowing you have changed your oil... If I go synthetic...then Ill change at 7500...the dealer even recommends a 7500 on conventional motor or... or offers not recommended
Not to get off topic, but what oil are you guys seeing used at your stealership?? My first oil change they used Castrol GTX, which I believe is pretty good stuff, at least for a regular, non synthetic oil. I am going to find out what synthetics they offer for my next change. I will bring Mobil 1 if I have to, never heard a bad thing about Mobil 1.
Make sure you use Mobil M1 0-40W and not 5-30W. From oil analysis, 5-30W shows a lot of iron content. The 0-40W though has 40W weight is closer to a 30W.
but it makes you feel good inside knowing you have changed your oil... If I go synthetic...then Ill change at 7500...the dealer even recommends a 7500 on conventional motor or... or offers not recommended
The oil may last 7500 but I think the stock oil filter may only be as effective up to around 4 -5K miles unless you use after market filter.
either way you guys are taking the whole advice on how conventional oil is supposed to seal engines properly for a while first before moving to the more viscuous synthetic right? I was thinking about doing my first upcoming 3750 change with conventional and then the 7500 with synthetic.....any input?
either way you guys are taking the whole advice on how conventional oil is supposed to seal engines properly for a while first before moving to the more viscuous synthetic right? I was thinking about doing my first upcoming 3750 change with conventional and then the 7500 with synthetic.....any input?
Huh? There is no waiting period to use synthetic oil. Conventional oil does not 'seal' better. Synthetic oil is not more viscous. Many new cars come with synthetic oil straight from the factory, mostly high end cars, BMW, MB, Porsche, Ferrari, Corvette. It's an OWT that you need to run conventional during break-in. Engines are run on a test stand in the factory and are broken in before you ever drive them. Maybe this applied to cars made 10 or 20 years ago, but the world has changed...