ludey dudey Posted June 21, 2017 Share Posted June 21, 2017 Probably a stupid question so take it easy on me... i believe i currently have some random 5w30 in my 2005 wrx ppp however on advice from oilman ive ordered some 5w40 to top it up from time to time - my question is: can i use the new stuff as a top up keeping the current oil in, it was changed only 10-12 weeks back at the garage & seems overboard to dump the lot. cheers Quote Link to comment Share on other sites More sharing options...
stants Posted June 21, 2017 Share Posted June 21, 2017 Should be fine if only topping up Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
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