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Postby 88alltracohio » Sun Dec 24, 2006 2:29 am

being such a noob, but my 3S-GTE has 152,xxx miles and i believe all the owners have used conventional oil, would switching to synthetic be bad, im sure all the seals are probably messed up and thinking synthetic would almost drip right through, but im not sure, should i just stick with the normal.
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88 ST165: SOLD :(
320hp sr swapped 90 240sx: SOLD
93 Del Sol: Daily driver
93 300zx: FOR SALE
I miss my AllTrac :'(
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Postby Gary » Sun Dec 24, 2006 3:00 am

Do you currently have any leak?
If you are not sure and don't wanna take a risk, stick with the dino oil and change it often.
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Postby CassMori » Sun Dec 24, 2006 9:43 pm

Gary wrote:Do you currently have any leak?
If you are not sure and don't wanna take a risk, stick with the dino oil and change it often.


+1

nearly any older/higher mileage engine will leak from the seals/gaskets when switched to synthetic, at least a little. It's not so much the seals being bad, just old/stiff and having sludge deposits, etc. on them. The synthetic will clean all that gunk out, causing the leaks. Valve/cam cover gaskets & oil pan gaskets are easy to change, but the biggest worry may be the front and rear main seals, which are usually rather involved to change out. Since I'm new here too, I'm not sure how the 3sgte seals react ;). In your case, you should probably stick with a good conventional oil, and change it regularly as Gary recommended.
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Postby 88alltracohio » Tue Dec 26, 2006 2:26 am

thanks, i just decided to stick w/ conventional, no i just have to get out there in that cold and change it :(
88 ST165: SOLD :(
320hp sr swapped 90 240sx: SOLD
93 Del Sol: Daily driver
93 300zx: FOR SALE
I miss my AllTrac :'(
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