sonic113 Posted August 21, 2015 Share Posted August 21, 2015 I ordered some oil for the car Castrol 5w 30 A1 as I always have used this in past services, but I got sent out Castrol 5w30 A5. Is the A5 still OK to use and what is the difference between them? Car that is in question is the mk2.5 focus 1.6 zetec. Thanks. Quote Link to comment Share on other sites More sharing options...
IINexusII Posted August 21, 2015 Share Posted August 21, 2015 A5 is ok i believe, as long as it meets Fords WSS-M2C913-C or WSS-M2C913-D specification i used the magnatec professional A5 previously which was WSS-M2C913-D 1 Quote Link to comment Share on other sites More sharing options...
dave1987 Posted August 21, 2015 Share Posted August 21, 2015 I think A5 is just the replacement for the A1 spec but as the previous post says as long as it's the same ford spec it'll be fine. Sent from my iPad using Ford OC 2 Quote Link to comment Share on other sites More sharing options...
sonic113 Posted August 21, 2015 Author Share Posted August 21, 2015 A5 is ok i believe, as long as it meets Fords WSS-M2C913-C or WSS-M2C913-D specification i used the magnatec professional A5 previously which was WSS-M2C913-D I think A5 is just the replacement for the A1 spec but as the previous post says as long as it's the same ford spec it'll be fine. Sent from my iPad using Ford OC Thanks fellas I will also be using this for the same engine in the 2010 cmax (1.6 zetec) so just to confirm can I use the A5 stuff in both cars as its 100% safe? also I have about half a drum of A1 left from another service on a different car that I was planning to use in case of any Top ups needed so is it ok to mix the A1 in with the A5 if any top ups are needed? Quote Link to comment Share on other sites More sharing options...
Dee_82 Posted August 22, 2015 Share Posted August 22, 2015 Probably ok, take a small sample of each an mix them, if it separates its no good, I suspect it'll mix in just fine 1 Quote Link to comment Share on other sites More sharing options...
iantt Posted August 22, 2015 Share Posted August 22, 2015 mixing a1 and a5 is fine , they are virtually identical specs. the a5 was developed mainly for the transit custom which now has 30k oil change intervals , so the a5 now covers all ford engines that require 5w30 1 Quote Link to comment Share on other sites More sharing options...
sonic113 Posted August 22, 2015 Author Share Posted August 22, 2015 thanks guys for the confirmation. I tried Darren's little tip about mixing in a container and they seem to be fine. Looking at the bottle specs they both do cover WSS-M2C913-C (Focus) AND WSS-M2C913-B (Cmax) so I guess its all good. :) Thanks again. Quote Link to comment Share on other sites More sharing options...
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