My Nissan Sentra uses 5W30 and I’ve been using the oil that I’ve always used. But I’ve noticed that a store I shop is out-of-stock and all they have left is synthetic. It’s only used 2,000 miles since my last oil change. Would it be OK to add the synthetic on top of the old-fashioned (I guess I coul…

Sure! You can add synthetic oil to regular oil. They make synthetic blend oils. Part regular and part synthetic. Tester

Agreed, you can mix the two types of oil and it will not harm your engine. However, it’s important to note that if you do mix the two, the conventional oil can keep the synthetic from performing to its fullest potential.

[image] LoudThunder: keep the synthetic from performing to its fullest potential. Probably not a problem for most drivers, especially an older Sentra.

You can always try a 2nd store. The Walmart 4 miles away is always out of oil but has discount bakery stuff I like. And Walmart 2 miles from me always has oil but never has discount bakery stuff.

[image] Cavell: The Walmart 4 miles away is always out of oil but has discount bakery stuff I like. Our Walmart seems to always have full stock of oil as if they have their own oil well and refinery… And their bakery is also pretty well stocked as well; but as if it is planned, the two locat…

Remember that places like Auto Zone, Advance auto parts, Napa, O’Reilly all carry oil… :grin:

Lowe’s & Home Depot also sell oil. Heck, my local supermarket even has a small selection of oil.

I wouldn’t walk into a Walmart if they were giving the merchandise away for free.

[image] VDCdriver: my local supermarket even has a small selection of oil So does… GASP… my local gas station! Shocking! :open_mouth: I think Home Depot has a better oil selection though. HOW did we get to the point where gas stations barely even stock any oil but have 60 varieties of beer …

Can I add synthetic to my "regular" oil?

Maintenance/Repairs

jtsanders December 1, 2023, 3:39pm 7

Walmart uses Warren Oil Company for Supertech motor oils. Thy always have it because they have a good ordering and distribution system.

Topic		Replies	Views
Synthetic vs. petroleum oil Maintenance/Repairs	10	1276	March 27, 2008
My Car Needs Oil Maintenance/Repairs engines , oil	13	1132	September 18, 2007
Substituting all-mileage oil with synthetic Maintenance/Repairs	22	2326	November 17, 2021
Kirkland Synthetic Oil Maintenance/Repairs	35	5492	February 7, 2020
Does this make me a cheapskate? A tightwad? You decide General Discussion	30	2646	June 16, 2013

Can I add synthetic to my "regular" oil?

Related topics