After reading the oil viscocity specs for the Euro Acura I became curious as to what's recommended in the Civics up north, especially since like Europe CAFE doesn't apply. 96 or newer civic specs would be good, preferably a pic just like the Acura post.
Both my '99 EL (Civic EX in US) and my '93 Integra specify 5W30 preferred, 10W30 if NEVER below 20f (-7c). No mention of any other viscosity whatsoever.
PS - What do 2004 Civics/RSX's specify, 5W20 or...?
5W20 is recommened for my '02 3.2TL.
The dealer put Valvoline 5W30 when I asked for synth...
I have been using RP 5W30 and was pleased with it. Now have GC 0W30 in it now and it seems to be a little thicker from the seat of my pants VOA....
My mistake then, with all the talk of 5w-20 only being a US thing due to CAFE I thought we might find a wider range of oil viscosity recommendations in other countries.
Another member posted a page from his 99 Integra owner's manual that illustrated such.
The link I posted was from a 95-97 Civic UK shop manual (I don't think they switched to the 6th generation Civic until 98 vice 96 like the US).
I have a 98 Civic and while it's not an identical engine to those listed above, it's very similar. The reason behind my original post is to determine if 5w-40 would be suitable with my engine. I'm considering going with Rotella synthetic.
I use M1 0W40 in my Integra; engine seems to like it, runs much quieter, and consumes less of it...
The engine does have 350 000km on it, however.
I have also tried 15W50 M1 in the summer, but I think thats too thick for small displacement engines in normal use; my car just seemed a little sluggish with it in there.
I am now using GC 0W30 in my EL; it too is a little thicker than most 30W's, more like a 0W38...or so!? Didn't really notice any difference in performance or sound with it, though.
I'd imagine a B16A would have different requirements than the D16Z7? I don't know if both Civics would share the same owner's manual. Just something to keep in mind. FWIW, I'll be running D1 5W-40 in my B18B come springtime. I'd base my oil choice on what you read here, and UOA, over what the owner's manual says anyday. Just my $.02.
I have a number of customers in Alabama running the Amsoil 0w-30 synthetic in Honda/Acura/Toyota/Mazda/Nissan/Mitsu engines ....The GC, 0w-30 would be perfect for your engine and is probably the best match in an off the shelf synthetic since it's significantly thicker than the Mobil 1, 0w-30 and 5w-30. I'd have no hesitation about using it at all.
I saw it locally at Autozone for about $5.00/qt, which seems like a fair price to me ....