Which manufactures still do NOT recommend X-20 oil

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Ford, Honda, Hyundai, Toyota, Chrysler and others I can't remember recommend X-20. Nissan is still with 5-30 oils. So, what's the hold up with not going to X-20 oils?
 
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 Originally Posted By: Nayov
So, what's the hold up with not going to X-20 oils?
I don't think any of the Xw-20 oils have an HT/HS of at least 3.5, which seems to be a common requirement of some of the European makes (BMW, VAG, MB).
 
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Funny you should mention Hyundai. This 08 Tiburon I just picked up for my kiddo says "5W20/5W30 are recommended." 10W30 can be used if the others are not available. I thought that was interesting....it says the 5/20 5/30 are energy conserving. Its the 4 cyl and it will get 5W30! \:\!
 
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 Originally Posted By: Nayov
Ford, Honda, Hyundai, Toyota, Chrysler and others I can't remember recommend X-20. Nissan is still with 5-30 oils. So, what's the hold up with not going to X-20 oils?
Hyundai recommends them in N.A. but recommends 30wt's elsewhere.
 
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 Originally Posted By: kender
FWIW, I was in Las Vegas last month. Rented a 2010 Mustang. I believe it had a 4.0 V6. The oil fill cap said 5w-30.
I believe that thats the only engine in the Ford line-up that still recommends 5W-30. Didn't know that they still used it in the '10 Mustangs...
 
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Subaru still says 5w-30. Though someone one time posted that they contacted Subaru and asked what weight oil was used as factory fill, they claim Subaru told them that 0w-20 is used as factory fill in their vehicles. If you look at UOAs done on Subaru factory fills, they always seem to be at a Xw-20 weight @ 100ºC, even when the factory fill was pulled VERY early. Although it's not conclusive, I find it interesting that Subaru does not allow a Xw-20 oil, but it appears that this may be whats used as the factory fill. Either way I stick with a Xw-30 in my Subaru
 
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 Originally Posted By: Jdblya
I could have sworn that the Hyundai's used 5w40? at least in the v6 engines?
Nope... I got a Santa Fe with a V6 and 5w20 is in the Manual and on the cap for my 2.7L but the technical manual suggests that I use a 30wt in the summer. I use 5w30 or 0w30 year round and have been since the truck was new. I have 200K KM (120K miles) and no issues to report. ;\)
 
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Here's what Amsoil's recommendation is for the 2002 Santa Fe with 2.7 V6 LUBRICANTS & FLUIDS Engine Oil Grade 1......API* Synthetic 5W-40 European Engine Oil SAE 10W-40 XL Synthetic Motor Oil Above 32°F......20W-40, 20W-50 Above -9°F......10W-30, 10W-40, 10W-50 Below 95°F......5W-30, 5W-40 Same for both the 2.7 & 3.5 in 2003-2005 In 2006 the 5w-20 spec came out LUBRICANTS & FLUIDS Engine Oil Grade 1......API* 100% Synthetic 0W-20 Motor Oil SAE 5W-20 XL Synthetic Motor Oil SAE 0W-30 Synthetic Signature Series Oil Above 32°F......10W-30 All Temps......5W-20[1]
 
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 Originally Posted By: SAJEFFC
Funny you should mention Hyundai. This 08 Tiburon I just picked up for my kiddo says "5W20/5W30 are recommended." 10W30 can be used if the others are not available. I thought that was interesting....it says the 5/20 5/30 are energy conserving. Its the 4 cyl and it will get 5W30! \:\!
I also use the 30 wt in our 06 Accent. It recommends 5/20 or 5/30. I use 30wt in my Mazda 3 as well, even though it clearly states 5/20.
 
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 Originally Posted By: CATERHAM
 Originally Posted By: HTSS_TR
Honda recommends 10W-30 for the S2000 except in extreme cold climate then 5W40.
You mean 5W-30 not 5W-40.
Honda recommends 5W40, not 5W30 nor 5W20, for S2000 in extreme cold climate.
 
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 Originally Posted By: Gary Allan
Here's what Amsoil's recommendation is for the 2002 Santa Fe with 2.7 V6 LUBRICANTS & FLUIDS Engine Oil Grade 1......API* Synthetic 5W-40 European Engine Oil SAE 10W-40 XL Synthetic Motor Oil Above 32°F......20W-40, 20W-50 Above -9°F......10W-30, 10W-40, 10W-50 Below 95°F......5W-30, 5W-40 Same for both the 2.7 & 3.5 in 2003-2005 In 2006 the 5w-20 spec came out LUBRICANTS & FLUIDS Engine Oil Grade 1......API* 100% Synthetic 0W-20 Motor Oil SAE 5W-20 XL Synthetic Motor Oil SAE 0W-30 Synthetic Signature Series Oil Above 32°F......10W-30 All Temps......5W-20[1]
Gary, I know I have been all over the application guide on Amsoil.com. I have tried a 20wt oil and found the lifters to be too noisy and it didn't really increase my fuel economy any so I stuck with the recommended 30wt which is in the technical manual I bought.
 
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