amsoil question

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Dec 29, 2011 | 03:46 PM

jdm5630

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From: Odessa

amsoil question

My dad gave me some 15w-40 amsoil for diesel and gasoline engines. Is it safe to add to my 07 expedition?

Dec 29, 2011 | 05:48 PM

chuck s

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From: Broadview Hts, Ohio

Why would you do this? The specification is 5W-20.

-- Chuck

Dec 29, 2011 | 06:14 PM

berry1234

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You can, but I stick with the 5w20 they recommend. The fuel economy was based off the 5w20. I wouldn't mix weights.

Dec 29, 2011 | 06:19 PM

jdm5630

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From: Odessa

well thats why i was asking. ive heard of people changing weights from summer to winter.

Dec 29, 2011 | 06:19 PM

jdm5630

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From: Odessa

and since it was amsoil and was given to me. i figured i would atleast ask before i did anything

Dec 29, 2011 | 06:31 PM

berry1234

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Quote:

Originally Posted by jdm5630

well thats why i was asking. ive heard of people changing weights from summer to winter.

Yes, you can change weights, that won't hurt anything. Look in the back your manual, it should have a chart based on outside temps. I meant add 1040 to your truck as a top off when it has 520 in it.

Dec 29, 2011 | 08:17 PM

jdm5630

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From: Odessa

Thanks for the help. As far as it beimg labeld for diesel and heavy duty gas engines. Does the 5.4 qualify?

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Dec 30, 2011 | 11:55 AM

jdm5630

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From: Odessa

i have the 5.4

Dec 30, 2011 | 12:01 PM

#10

berry1234

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I meant what type of oil from the link I posted.

Dec 30, 2011 | 12:22 PM

#11

jdm5630

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From: Odessa

AMSOIL Premium API CJ-4 Synthetic 15W-40 Diesel Oil (DME)

thats the one i have

Dec 30, 2011 | 09:09 PM

#12

jdm5630

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From: Odessa

Oh and it would be for an oil change and not for a top off.

Dec 31, 2011 | 12:24 AM

#13

Tylus

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From: SE Georgia

don't bother. Free is free...but the 5w20 is better for your motor

Jan 2, 2012 | 11:35 AM

#14

berry1234

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I agree. Sell the oil and use 5w20 Motocraft semi-synth. There are oil specs -in your manual-that the engine requires and I don't think that meets them.