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#1950637 - 07/12/10 10:33 AM 1994 Honda Accord EX (LX U.S.) - 5W-30 or 5W-20?
Majarvis Offline


Registered: 07/05/10
Posts: 27
Loc: Halifax, Nova Scotia, Canada
Hey everyone.

As an extension of this thread, I have another question: http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1950295#Post1950295

The other day, I picked up a 5L jug of Castrol GTX High Mileage 5W-20. Now, this was new to me, as I had only ever saw it in 5W-20 and 10W-30 grades on the shelf, before. It must be new to us here in Canada, or at least that particular Walmart location.

Anyway, I know that Honda states in the manual that they recommend 5W-30 weight oil for the 1994 Honda Accord, and that's what I've been using for the previous 3 years I have owned this vehicle. It has never burned any oil, and has only consumed a very, very marginal amount once during a very cold week in the winter. It has never consumed any oil at normal operating temperatures above freezing.

However, the other day I picked up Castrol GTX High Mileage 5W-20, thinking, for whatever reason, that was what the Accord actually required. I knew that it was a new grade I had never seen before, but for whatever reason, I thought I had always bought it in 5W-30 only because 5W-20 wasn't available.

Now, the easy thing to do for me would be to just exchange it for the 5W-30 grade. However, what I'm wondering is, is that really necessary? Would 5W-20 be fine in this engine?

I'm thinking that perhaps the 5W-20 grade Castrol GTX High Mileage would be fine, and possibly yield slightly better fuel economy, because it is a high quality dino oil.

I just wanted to check with the experts on here, as I am far from an expert in engine oil yet.

The easiest solution, of course, is that I could just exchange it for 5W-30, but when I purchased the 5W-20, I did not see any 5W-30 on the shelf at all. Perhaps Castrol has replaced 5W-30 with 5W-20?

Cheers.

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#1950655 - 07/12/10 10:44 AM Re: 1994 Honda Accord EX (LX U.S.) - 5W-30 or 5W-20? [Re: Majarvis]
addyguy Offline


Registered: 09/08/05
Posts: 13429
Loc: Canada
My take is it will be fine. Most conventional 30-weight oils that start at 10.3-10.7cst will shear down slightly to about 9.0-9.3cst; so a 30-weight will end up where this HM 20-weight starts.

Plus, a 20-weight in general, and a HM one specifically, will be very shear-resistant, so this oil will stay around 8.8-9.2cst for the entire interval.
_________________________
2003 Mazda Tribute LX V-6, 172k miles.
Oil: QS Defy 5W-20; Fram Ultra XG2 filter.

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#1950663 - 07/12/10 10:52 AM Re: 1994 Honda Accord EX (LX U.S.) - 5W-30 or 5W-2 [Re: addyguy]
bepperb Offline


Registered: 01/10/08
Posts: 4770
Loc: Milwaukee, WI
The 4cyl F22 was 5-30, in 1999~2001 it changed to 5-20. Really, 5-20 wasn't around in 1994 in specable quantities.

Anyway, having had a F23 for 110,000 miles in my opinion it won't matter which you run.

No, 5-30 is probably the most common grade in Canada.


Edited by bepperb (07/12/10 10:53 AM)
_________________________
2004 Highlander 2.4
2011 Toyota Sienna 3.5
Recently Gone:
2006 Accord 2.4l K24A8
1993 Kawi EX 500

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#1950831 - 07/12/10 01:40 PM Re: 1994 Honda Accord EX (LX U.S.) - 5W-30 or 5W-2 [Re: bepperb]
Majarvis Offline


Registered: 07/05/10
Posts: 27
Loc: Halifax, Nova Scotia, Canada
Thanks, both! I had no idea 5W-20 wasn't around in 1994, thanks!

So, I should feel comfortably safe sticking with the GTX High Mileage 5W-20? Good to know! May give a slight boost to the new owners in terms of fuel economy, too!

Cheers.

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#1951224 - 07/12/10 08:02 PM Re: 1994 Honda Accord EX (LX U.S.) - 5W-30 or 5W-2 [Re: Majarvis]
mva Offline


Registered: 02/09/08
Posts: 755
Loc: Northern BC, Canada
I agree with the posters above - it should be safe to run. I tried Maxlife 5W20 in my 1994 Accord and liked it at the time:

http://www.bobistheoilguy.com/forums/ubb...578#Post1380578

But, since then I have switched back to PP 5W30. It is had to judge but I thought there was a bit more noise with the 5W20.
_________________________

2000 Toyota Sienna 318,000 km PYB 5W30
2000 BMW Z3M 110,000 km GC 0W30
2005 Prius 148,000 km VWB 5W20
2002 Civic Si 187,000 km PYB 5W20

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#1951355 - 07/12/10 09:49 PM Re: 1994 Honda Accord EX (LX U.S.) - 5W-30 or 5W-2 [Re: mva]
Majarvis Offline


Registered: 07/05/10
Posts: 27
Loc: Halifax, Nova Scotia, Canada
Thanks! I'm on the fence as to whether I'll return it or not for the tried and true 5W-30.

I wonder if the base stock in the 5W-20 is of higher quality than the 5W-30?

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#1951439 - 07/13/10 02:07 AM Re: 1994 Honda Accord EX (LX U.S.) - 5W-30 or 5W-20? [Re: Majarvis]
Geonerd Offline


Registered: 08/05/08
Posts: 656
Loc: Aridzona
Originally Posted By: Majarvis
Hey everyone.

I just wanted to check with the experts on here, as I am far from an expert in engine oil yet.


LOL If you find any genuine experts around here, please let me know. hornets
Opinions, OTOH, BITOG has in abundance! smile2

Personally, I'd exchange it. I'm a big fan of HTHS.
But, FWIW, AFAIK, IMO.... xW-20 won't cause your Accord to explode. You just might experience fractionally increased bearing wear - but probably won't... cool

So long as you don't go pulling any trailers and stay away from the drag strip, you'll be fine.
_________________________
92 Accord Wagon - The White Whale! 225K.
Oil du jour: Valvoline 10w-30 SM Dino, Pure One oil filter. 6K OCI. 35 MPG with sane hypermiling.

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