5w-30 or 20w-50 for Corolla

[macaddict]

Hello all, I have a 04 Toyota Corolla. Currently my plan is to run Mobil1 10w-30 for the summer and Mobil1 5w-30 for the winter @ 5k miles OCI. I was surfing around and I found that Toyota recommends 20w-50 for the Corolla down in Chile (South America). I was wondering if that could be better for the summers here. Also, Mobil1 15w-50 sounds like a good candidate. Link for Corolla Any thoughts???

 

[haley10]

Mobil 1 10W-30 and 5W-30 is the best for your car. Pay no attention to some of these international web sites. You will only cause more internal heat and reduce gas mileage by using a thicker oil. I would absolutely not run a 15W-50 or 20W-50 !! Thicker is not better, especially if your engine uses VVT.

 

[MikeR]

Probably gets a lot hotter in Chile than in New Jersey. I'd use the M1 10w-30 year round. MR

 

[Al]

Don't even think about a 50 wt. for that vehicle.

 

[Eddie]

Your owner manual is your unbiased friend. Read what the people who built your engine recomend.

 

[haley10]

quote:

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Originally posted by MikeR: Probably gets a lot hotter in Chile than in New Jersey. I'd use the M1 10w-30 year round. MR

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It's just 3rd world group think. They have many inferior oils that shear quickly, so they need to start off on the high end. Not just ambient temp.

 

[macaddict]

OK!! Nevermind I swear I will never put anything in my car that is not 5w-30 or 10w-30.

 

[Al]

quote:

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Originally posted by macaddict: OK!! Nevermind I swear I will never put anything in my car that is not 5w-30 or 10w-30.

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Hahahaha. ..well maybe we'll allow to put a 25% mixture of 15W-50 in your car That will get the oil to a higher end 30 wt but still below a 40 wt (generally). But really, more and more we are seeing that in normal to moderate high spirited driving a quality 30 wt. seems to protect very capably. Don''t fear 30 wts. or even 20 wts.

 

[MikeR]

quote:

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Originally posted by haley10:

quote:

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Originally posted by MikeR: Probably gets a lot hotter in Chile than in New Jersey. I'd use the M1 10w-30 year round. MR

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It's just 3rd world group think. They have many inferior oils that shear quickly, so they need to start off on the high end. Not just ambient temp.

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Interesting. Makes sense considering the stories and UOA's that Widman has posted. Thx, MR

 

[mikemc]

quote:

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Originally posted by macaddict: OK!! Nevermind I swear I will never put anything in my car that is not 5w-30 or 10w-30.

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You're on the right track. Use those oils and the car will probably last longer than you care to keep it.