Is there anything that 10W-30 can do that 5W-30 can't do?
Is 10W-30 really obsolete?
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Hermann
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Usually have a better NOACK value.
"Is 10w-30 really obsolete?"
Answer: Yes.
Answer: Yes.
My 2010 John Deere lawn tractor recommends 10w30 as do many other engines. Maybe not the most recommended weight anymore but, certainly not obsolete.
If I were going out to buy oil it would be 5w30....but if I had some 10w30 in my stash (and I do), I wouldn't hesitate to use it in the warmer months.
A quality 10w30 will protect just as well as a 5w30 in warmer climates such as Florida, California, New York summer etc....IMO.
In other words, there is no reason to buy 10w30 over 5w30 today but if you have some 10w30...use it....
A quality 10w30 will protect just as well as a 5w30 in warmer climates such as Florida, California, New York summer etc....IMO.
In other words, there is no reason to buy 10w30 over 5w30 today but if you have some 10w30...use it....
Well I live in Florida so theres really no reason to use 5w 0r 10w. Since 15w40 must be better
Originally Posted By: exranger06
"Is 10w-30 really obsolete?"
Answer: Yes.
Not really, the diesel world is switching over to 10w30 HDEO.
"Is 10w-30 really obsolete?"
Answer: Yes.
Not really, the diesel world is switching over to 10w30 HDEO.
10w30 will be around for a long time still.
10w-30 is less common yes..
Obsolete?- no
Obsolete?- no
Originally Posted By: Eddie
My 2010 John Deere lawn tractor recommends 10w30 as do many other engines.
Sure, but would its longevity or performance be harmed by using a 0w-30, a 5w-30, SAE 30, or a 15w-40? Small engine manuals often haven't been updated for many, many, many years. Speaking of which, plenty call for SAE 30, which is obsolete.
To be fair, we're in the PCMO forum, and I think we're mainly addressing gasoline passenger vehicles, not garden tractors, diesels, or air compressors, all of which may call for a 10w-30 of one sort or another.
One of the air compressors at one of my businesses calls for (at least on one page, another page contradicts it) M1 10w-30, specifically. That's CATERHAM's favourite oil - a 10w-30 synthetic.
My 2010 John Deere lawn tractor recommends 10w30 as do many other engines.
Sure, but would its longevity or performance be harmed by using a 0w-30, a 5w-30, SAE 30, or a 15w-40? Small engine manuals often haven't been updated for many, many, many years. Speaking of which, plenty call for SAE 30, which is obsolete.
To be fair, we're in the PCMO forum, and I think we're mainly addressing gasoline passenger vehicles, not garden tractors, diesels, or air compressors, all of which may call for a 10w-30 of one sort or another.
One of the air compressors at one of my businesses calls for (at least on one page, another page contradicts it) M1 10w-30, specifically. That's CATERHAM's favourite oil - a 10w-30 synthetic.
My portable generators call for 10w 30 for >32°f. So does my lawnmower but I add a few oz's of HD 30 to that since the oil seems to get a lot of fuel dilution.
Yes, but the original question was is it obsolete, not is it obsolete in passenger cars.
Yes, but the original question was is it obsolete, not is it obsolete in passenger cars.
Hermann
Site Donor 2023
I have 12 quarts of Maxlife Full Synthetic 10w-30 on the shelf, when all my other oil is gone it will go in whatever I am driving. Even been thinking about mixing in a 1/2 qt. or so on the motorcycle which is using Maxlife 20w-50 blend, just to get it used up.
Well, I guess Merkava will have to clarify. I would have to say that there are few instances where you couldn't get away with something else. My air compressor has no business using a PCMO 10w-30 (another page in the manual recommends a ND compressor oil). My lawn mower does fine with my 5w-30 MaxLife leftovers, regardless of what the manual says. And 10w-30 HDEO isn't the only lower viscosity HDEO option. There are 0w-30 and 5w-30 CJ-4 HDEOs.
In a diesel, though, the 10w-30 (like a 15w-40 conventional) likely would be the most economic option, as the 5w-30 and 0w-30 HDEOs are synthetics. For just about anything else, I wouldn't even bother with a 10w-30.
In a diesel, though, the 10w-30 (like a 15w-40 conventional) likely would be the most economic option, as the 5w-30 and 0w-30 HDEOs are synthetics. For just about anything else, I wouldn't even bother with a 10w-30.
Originally Posted By: Garak
Well, I guess Merkava will have to clarify.
The 2000 Buick LeSabre owners manual specifies 10W-30 above
0 degrees F, but 5W-30 is okay for 61 degrees F and below.
The 2004 Buick LeSabre owners manual says 10W-30 is okay
above 0 degrees F, but 5W-30 is preferred for all temperatures.
Both cars have the same exact engine.
Well, I guess Merkava will have to clarify.
The 2000 Buick LeSabre owners manual specifies 10W-30 above
0 degrees F, but 5W-30 is okay for 61 degrees F and below.
The 2004 Buick LeSabre owners manual says 10W-30 is okay
above 0 degrees F, but 5W-30 is preferred for all temperatures.
Both cars have the same exact engine.
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