Do I have to use the 15-40wt engine oil as specified in our owners manual. If so, where can I get some synthetic blend of it on the net.
Thanks - Murf
Enthusiast
Do I have to use the 15-40wt engine oil as specified in our owners manual. If so, where can I get some synthetic blend of it on the net.
Thanks - Murf
2003 GMC 2500 D/A SLT Extendcab<br />28\' Splash TT<br />8\'LiteCraft Slidein/popup
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