Use to use 10W40 in the 70's, then 10W30 in the 80's. Haven't bought it since the early 90's. Everything I own now specs 5W30, 5W20, 0W20. But, I use 10w40 conventional in my OPE stuff.
Who is using 10w-30?
- Thread starter Elkins45
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IF you're using a 5W-30 already, 10W-30 is fine as long as it doesn't drop below zero F. Certainly can run it in the Spring and through Summer. I just grabbed a jug of Pennzoil Platinum 10W-30 at AAP for $18.95 (Clearance.) I'll just use it for top-off though as my cars all take over 5 quarts (5.2 to get to full line.) Except the RIO. She only takes 3.5 quarts.
I have a 2010 Cobalt that has a mechanical issue that dumps immense amounts of fuel into oil. (O2 and injectors are fine)
The full synthetic 10w30’s that have low VII tend to keep the motor quiet through a normal duration oil change, instead of becoming a box of hammers at 1500 miles.
It’s much less irritating to do an oil change every 3000-4000 miles instead of under 2000 miles
People really struggle with understanding a winter rating.
2004 Jeep Wrangler 4.0L 10w30.
I started using 10w-30 in Forte a little while ago. After experimenting with using 0w-20, 5w-20 (what they call for), 0w-30, 5w-30 and 0w-40 oils. It seems it likes 10w-30 best and we don't have cold winters around here while temps drop below freezing sometimes.
Until I crushed it, 95 Corolla 1.6L I think back then 10w30 is slightly thicker than 5w30 and doesn't shear down as fast, but these days they just use a different blend of base and they both work well.
I’ve got a few flavors of 10w-30 on the shelf left over from Jeep 4.0l days. Most was found on clearance. Thinking I may use em up as they are about 5 yrs old now. Run it all next month in:
2015 Silverado 5.3
2017 F150 2.7
2017 Explorer 3.5 NA
2016 Cruze turbo
I been using a stash of 10w-30 Amalie Imperial SM I found at dads to keep all the OPE going.
2015 Silverado 5.3
2017 F150 2.7
2017 Explorer 3.5 NA
2016 Cruze turbo
I been using a stash of 10w-30 Amalie Imperial SM I found at dads to keep all the OPE going.
Just did an oil change this past weekend. Quaker State Ultimate Durability 10W30 is in the Malibu LKW right now.
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2015 Toyota HighLander. I got a crazy good deal on some Mobil Delvac Extreme Synthetic 10W30 for $11 a gallon from NAPA. It is not a plot of conspiriacy theory or anything like that. I have ran 0W20, 5W20 and 0W40 in it so just happened to be on sale and major name brand!
Putting this in my Honda Airwave now, I normally run a 5-30, but this was super cheap and Supercheap. The Honda likes thin 30's for good fuel economy, the Friction Fighter is 10.3 cst @ 100c, so should be good. Nearly every car in NZ has a Ryco filter.
I wish automakers today would provide a range of suitable viscosities in the owner's manual.
In fact, I wish most automakers would provide a physical owners manual instead of just a digital one.
I favor thicker oils for longevity. What I usually do is look at what viscosities are recommended in overseas markets for the same engine. Toyota in particular tends to have a wide variance between what viscosity they recommend in the USA due to CAFE regulations, versus overseas markets.
The only new vehicle I ever bought, a 1994 Toyota Camry, is still on the road 32 years and 400,000+ miles later. I always bought Walmart conventional 10W-30 along while I had it.
In fact, I wish most automakers would provide a physical owners manual instead of just a digital one.
I favor thicker oils for longevity. What I usually do is look at what viscosities are recommended in overseas markets for the same engine. Toyota in particular tends to have a wide variance between what viscosity they recommend in the USA due to CAFE regulations, versus overseas markets.
The only new vehicle I ever bought, a 1994 Toyota Camry, is still on the road 32 years and 400,000+ miles later. I always bought Walmart conventional 10W-30 along while I had it.
They can’t. It’s part of the EPA rules for fuel consumption certification.
Perhaps that will change now with non enforcement, I don’t know.
Use/d in my '05 Element, 93' C1500 and '94 F350
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1989 F150 2wd 4.9 with 215k miles nothing but white bottle GTX 10w30 as long as I have had it
1990 F150 4X4 4.9 with 43k also nothing but white bottle GTX 10w30
1990 F150 4X4 4.9 with 43k also nothing but white bottle GTX 10w30
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