Whoops Sae 10-30 instead of 10w30
08-29-2019, 06:28 PM
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Whoops Sae 10w-30 instead of 10w30
I just accidentally filled my 1999 xj 4.0 with sae 10w-30 instead of 10w30, so many confusing opinions out there, I figured you guys would know what's up. Is it ok? I changed it for the drive from colorado to nevada and will be staying in nevada, northern so not as crazy hot.
Last edited by Smokeylizard01; 08-29-2019 at 06:54 PM. Reason: Typo
08-29-2019, 06:39 PM
#2
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What brand oil did you use? I am pretty sure sae 10-30 means the same thing as 10w30 they are just labeled different.
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318SixPack (08-29-2019)
08-29-2019, 06:41 PM
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08-29-2019, 06:57 PM
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SAE (The society of automotive engineers) is motor oil. 10-30 and 10W30 are the same.
SAE (The society of automotive engineers) is motor oil. 10-30 and 10W30 are the same.
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08-29-2019, 09:27 PM
#9
Old fart with a wrench
When they first started making multi-grade oils, people got confused what 10-30 meant so they added the "w" to signify "winter", cold. They went on to explain a 10w-30 oil flows like a straight 10 weight oil when cold, but retains the lubricity of a straight 30 weight when hot. At least that's how it was explained to me by my high school physics teacher.
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