I have a 2007 sentra 2.0l can i run thicker oil in it.

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3 weeks 1 day ago - 3 weeks 1 day ago #203660 by ferd
The car has 215k on it. Always changed oil every 5k. However i have blowby. Car runs good in every way. Just wondering if i could put a heavier oil in it- I always did that for older cars. however autozone says you have to be careful because it can mess up the timing in newer cars. Not sure a 2007 is considered a newer car. The car uses 5w30 oil. I want to put in 10w30 oil. Also I dd something stupid I put in 8 ounces of Marvel mystery oil in thinking maybe i had some gummed up valves or rings. It is now spitting oil out the oil cap. OOPS before it wasnt. Another reason for using heavier oil. I think the heavier oil affects cars with variable valve timing. Not sure if this car has that.
Last edit: 3 weeks 1 day ago by ferd.

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3 weeks 6 hours ago #203671 by college man
Check that the pcv is not clogged. My daughters 2010 sentra has blow by. What I did was installed a oil catch can.
She has almost 125k on it. You can't stop the blow by but you can catch it. Using the thicker oil will not solve the problem.




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3 weeks 2 hours ago #203674 by ferd
I found out that with these newer cars you cant put in a heavier oil. However I have ordered a catch can. Thanks for the input.

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2 weeks 6 days ago #203680 by college man
keep us posted on the catch can install.

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