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#1
11-13-2009, 11:11 AM
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Synthetic oil
I have bought a volvo 240 d6 1984 overdrive. The car has run 280000 km and it is well maintainced. It has never done anything with the engine and here we have tempraturs down on -25*c and almost every engine that has gone over 200000 changed engine/head and they are leaking oil. But my new volvo had one owner before and it had run on synthetic oil since it was new and have very good kompression and no leaks
 It fires right up. So synthetic oil is very good This is an example what good maintance do to the engine
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#2
11-13-2009, 07:16 PM
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Yep.
Not running synthetic is a false economy. You might pay a little less at oil change time if you don't do it, but you will pay way more in the long run. Engine wear is expensive.
__________________
86 745 D24T/ZF 345k lifted 2.5" 83 764 D24T/M46 155k
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#3
11-22-2009, 04:41 PM
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once I switched to synthetic oil on my Gasser with 300k on it, and that resulted in engine oil build up and poor oil change maintenance junk to plug up the pick up tube. Could this same thing happen to my D24T with 150k on it if I switched to Synthetic?
__________________
Redblocks are fun and easy but Greenblocks take skill. '79 245 with D24TIC + M47
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#4
11-23-2009, 06:33 AM
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The synthetic didin't cause that, it was probably about to happen anyway. If it was that sludged up it was bound to have problems. I dont think my car ran synthitic till I got it, with 160k miles. I have been running 5w40 Rotella and been running the crap out of it. Its been running great. One thing I did do though, was change the oil with regular 15-40 and a quart of Marvel Mystery oil and ran it around with that in there for 250 miles and drained it. It came out quite dirty. I figured that helped flush the engine a little. I changed the filter of course.
Jason
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  Back again with a '84 760 GLE D24T/ZF SOLD but not forgotten! 1984 760 Sedan, built D24Tic/ T-5 swapped My engine build: http://www.d24t.com/showthread.php?t...t=engine+build T-5 swap: http://d24t.com/showthread.php?399-W...to-quot-w-pics!
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#5
11-23-2009, 06:34 PM
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Yeah, I doubt your issues were related to the switch to synthetic. Syn gets blamed for a lot of problems that it doesn't cause. People try to run it in really worn-out engines that are about to die or have major leaks or other problems anyway, then when those leaks or problems do happen, synthetic gets the blame. The fact is that it protects the engine internals from wear to a vastly superior degree and has no negative side effects at all other than increased price. If something bad happened after you started running synthetic in your old, used-up engine with 300,000 miles on it, that's the fault of poor maintenance in the past, not the oil now. Sorry.
__________________
86 745 D24T/ZF 345k lifted 2.5" 83 764 D24T/M46 155k
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