AccordGuy11 Posted March 21, 2017 Share Posted March 21, 2017 I'd like to switch to synthetic oil for my 1994 Civic ... with 110,000 miles! The recommended weight for natural oil is 10-30. What about synthetic? Remember, it's a 1994. Link to comment Share on other sites More sharing options...
Cuda Posted March 26, 2017 Share Posted March 26, 2017 I wouldn't run synthetic I've heard that's the main cause of head gaskets going I've always ran conventional in all my Hondas and I've never had a problem my brother's got a Honda Civic with 400,000 on it never touched synthetic but just what I've heard and have kind of experienced just letting you know Link to comment Share on other sites More sharing options...
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