Switching oil brand and weight/

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03-01-18, 11:48 AM

DixieLex

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Switching oil brand and weight/

Been using Valvoline MaxLIfe 5w30...good oil but wanted lower NOACK and better HTHS.
So switched to this below:
HTHS = 3.88
Noack = 6.8 %

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03-01-18, 12:14 PM

timmy0tool

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i use the same oil but 5w-20 and it works well for me (OCI every 10k).
if I could find Pennzoil Ultra that would be better but it's not as easily available in my area.

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03-01-18, 06:32 PM

2grfan

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40w is a bit heavy, you’ll pay for it in decreased fuel economy.

Low NOACK is important but it doesn’t matter as much in the 350.

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03-02-18, 03:41 AM

DixieLex

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I know, but it will be less than 1% loss

I'm avg. about 31.2 mpg but I'm good with it for protection.

Def having fuel dilution problems so this should help and with oil blowby

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