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Old 10-11-2013, 09:57 PM   #5
el diablo viejo
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Join Date: Jan 2012
Location: New Hampshire
Posts: 1,419

1994 SW1
2000 SW2
Default Re: my new to me '99 SL2

Synthetic oil generally will help to keep the oil usage from getting worse, if you can justify the extra cost and it is not burning a lot. It should also get you another 1-2 mpg.
97 sl2 a/t 104 K
1989 GMC 3500 454 129 K, 1969 442 455 rat rod
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