Switching from Mobil-1 to Castrol GTX
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Switching from Mobil-1 to Castrol GTX
Gonna be buying a rebuilt with about 5K on it until I have the money to do a proper rebuild on my 88 NA...
My old engine always had GTX, and it got me 190,000 hard miles, and from what I've read, most people prefer this oil...
The rebuilt I'm buying has always had Mobil-1... Is it cool to just do a straight oil-change from syn to mineral, or do I need to have the engine flushed???
Thanx for any input!!!
My old engine always had GTX, and it got me 190,000 hard miles, and from what I've read, most people prefer this oil...
The rebuilt I'm buying has always had Mobil-1... Is it cool to just do a straight oil-change from syn to mineral, or do I need to have the engine flushed???
Thanx for any input!!!
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i like Castrol GTX. good quality oil and best of all is very cheap in price.
i'm guessing what you are saying is that you are buying an already assembled rebuilt engine that has about 5k miles on it? how exactly is he going to check for internal sludges/deposits Mark
i don't think switching over from synthetic to mineral, vice versa, at any mileage will do any harm. i'm not an oil expert, so i can't tell you the specific interactions between mineral and synthetic oil. especially since GTX is a fairly low detergent/additive oil, you will not have any problems.
one thing you could is just to drain all the oil and then you can put a new oil filter and GTX in.
i'm guessing what you are saying is that you are buying an already assembled rebuilt engine that has about 5k miles on it? how exactly is he going to check for internal sludges/deposits Mark
i don't think switching over from synthetic to mineral, vice versa, at any mileage will do any harm. i'm not an oil expert, so i can't tell you the specific interactions between mineral and synthetic oil. especially since GTX is a fairly low detergent/additive oil, you will not have any problems.
one thing you could is just to drain all the oil and then you can put a new oil filter and GTX in.
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Originally posted by coldfire
how exactly is he going to check for internal sludges/deposits Mark
how exactly is he going to check for internal sludges/deposits Mark
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alright, i guess that works
however you can only reach so far around in there through the drain plug...but i wouldn't worry about it too much, i can't remember the last time i've seen anything like that come out of an oilpan...
however you can only reach so far around in there through the drain plug...but i wouldn't worry about it too much, i can't remember the last time i've seen anything like that come out of an oilpan...
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