Thicker at 40 C and how much colder? We're talking more generalizations here, and it's clearly worked out for OEMs specifying a 0w-20 over a 5w-20.
Straight 30 getting hard to find
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Well, if you'all are in the northern tier of the NA continent, sure multi's are a good way to go. TX, maybe not ... LA, multi's are actually silly
Here's a couple that we can't get in Oz
http://www.cam2.com/userfiles/productLiterature/CAM2-80565-419-SuperProMax-SAE30.pdf
https://www.amazon.com/Sierra-Marine-Ste...47XDN7FM1SD66X0
http://www.cam2.com/userfiles/productLiterature/CAM2-80565-419-SuperProMax-SAE30.pdf
https://www.amazon.com/Sierra-Marine-Ste...47XDN7FM1SD66X0
I like napa's offering. Their store brand is available in 30, 40 and 50, as well as 20/50 which is also hard to find in anything but GTX, vr1 and store brand. Napa oil can be had on sale for $1.99-$2.19/qt on sale, and my local store has it everyday priced for only $2.99/qt. Most in the know are aware it's essentially an economized version of Valvoline con, which is not a bad thing.
Originally Posted By: CT8
The loss of revenue and the cost of overhaul and repairs add up quickly on commercial use planes ships and trucks etc.
Years ago when I worked for Flying Tiger out at Sea/Tac they figured even back then just the time the craft sat on the tarmac was worth about 50K an hour and that was in 1973.
The loss of revenue and the cost of overhaul and repairs add up quickly on commercial use planes ships and trucks etc.
Years ago when I worked for Flying Tiger out at Sea/Tac they figured even back then just the time the craft sat on the tarmac was worth about 50K an hour and that was in 1973.
Ships also have very little use for cold cranking or MRV performance, I should think.
True. Only Ice-Breakers are ever in danger of sub-0 re-starts. And they have generators and ancillary equipment running at all times in the engine rooms, so not going to get down to freezing unless we get into another ice age ...
Fishing boats on the other hand, regularly see near freezing starts ... But the huge thermal mass known as the oceans keep the bilges warm'ish
Aviation, Trucking, and Mining do see cold starts, a lot ...
Fishing boats on the other hand, regularly see near freezing starts ... But the huge thermal mass known as the oceans keep the bilges warm'ish
Aviation, Trucking, and Mining do see cold starts, a lot ...
Oh yes, aviation sees plenty of cold starts. You should see all what goes on with private aviation at the airport here when it's -40 C and people want to ensure a two seater can take off. You'd also be appalled at what heated storage goes for at the airport here.
Near freezing starts aren't so bad. Worrying about a 0w-XX or 5w-XX shouldn't really happen until far, far below freezing.
Near freezing starts aren't so bad. Worrying about a 0w-XX or 5w-XX shouldn't really happen until far, far below freezing.
I was at Walmart today and wanted to get a quart of SAE 30 for the lawn mower. They have carried Pennzoil and Castrol in SAE 30 before, but I could not find any SAE 30 in any brand. Guess people are going with 10W-30 in their lawn mowers now?
Yup, the sales to, and conditioning of folks is moving right along...
Drop by your local neighborhood tractor shop (name brand, or indy), they will have SAE 30 HD in at least one robust formulation
Drop by your local neighborhood tractor shop (name brand, or indy), they will have SAE 30 HD in at least one robust formulation
Not even supertech? Perhaps they were sold out because of lawn mowing season.
If you have a tractor supply store locally, they should have Pennzoil, Castrol, Valvoline, Traveller's and Rotella 30 in stock.
If you have a tractor supply store locally, they should have Pennzoil, Castrol, Valvoline, Traveller's and Rotella 30 in stock.
Originally Posted By: BrocLuno
If SAE 30 HD were inferior, why would really expensive engines like aero and ships rely on it? And why would there be engines that will not tolerate anything else?
General aviation does not "rely" on straight-grade oils because they are better or have superior qualities. If there is a reason anyone in that sector relies on such oils it has nothing to do with it being better. Multi-grade oils have been available to GA for over 30 years.
I do agree with some of the reasons you state that straight-grade oils are better, but your often made reference to aviation is not one of them.
If SAE 30 HD were inferior, why would really expensive engines like aero and ships rely on it? And why would there be engines that will not tolerate anything else?
General aviation does not "rely" on straight-grade oils because they are better or have superior qualities. If there is a reason anyone in that sector relies on such oils it has nothing to do with it being better. Multi-grade oils have been available to GA for over 30 years.
I do agree with some of the reasons you state that straight-grade oils are better, but your often made reference to aviation is not one of them.
Originally Posted By: Red91
Not even supertech? Perhaps they were sold out because of lawn mowing season.
If you have a tractor supply store locally, they should have Pennzoil, Castrol, Valvoline, Traveller's and Rotella 30 in stock.
I looked over every brand and no SAE 30 in any brand. Even looked at the shelf labels for SAE 30 and didn't see any, thinking they were out.
Not even supertech? Perhaps they were sold out because of lawn mowing season.
If you have a tractor supply store locally, they should have Pennzoil, Castrol, Valvoline, Traveller's and Rotella 30 in stock.
I looked over every brand and no SAE 30 in any brand. Even looked at the shelf labels for SAE 30 and didn't see any, thinking they were out.
Personally I've had good luck with 10/40 and 20/50 as well as 30 in the mowers I service. This year I used mostly what I already had on hand.
Originally Posted By: Red91
Personally I've had good luck with 10/40 and 20/50 as well as 30 in the mowers I service. This year I used mostly what I already had on hand.
I used GTX 20W50 in my push mower, no problems. A mineral 15W40 would work well too.
Personally I've had good luck with 10/40 and 20/50 as well as 30 in the mowers I service. This year I used mostly what I already had on hand.
I used GTX 20W50 in my push mower, no problems. A mineral 15W40 would work well too.
My OPE generally gets whatever's laying around leftover from something else. It's the only time I don't let my mixing/switching phobia get the better of me. The snowblower is stored indoors in a heated garage, so if it gets 15w-40, that's fine. Last time it got something like RP 0w-40, and MaxLife 5w-30 before that. The mower likely has SAE 30 in it, since my OPE engine guy fixed the disastrous carb and had to change oil.
A good place for chris142 to find would be a wholesaler/distributor. Usually there are lots of options for monograde oils and 20/50. Short of that you have your store brands at auto parts and farm stores and online vendors. If you happen to have a local Indy owned Napa or Carquest, typically their monograde selection is great. My local Napa carries store brand 30/40/50, Valvoline 30/40/50, Pennzoil 30, Castrol 30, and Delo 30/40. He's even got a few quarts of ilsac certified vr1 60.
Yes, a distributor, and NAPA at least can get it in, even if only on special order.
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