I know not many uses for it any more. Most places only stock it in 1 brand. Bummer.
Straight 30 getting hard to find
- Thread starter Chris142
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I know what you mean. I had to settle for O'Reilly store brand for my lawnmower. Since that time I've found Castrol at Tractor Supply. I'm thinking of using the Traveller in house label from TS. It's inexpensive and SN rated.
How about 'yay, there are so many better choices'.
(Effectively) Nobody carries it in volume because (effectively) nobody uses it in volume anymore.
At least not in any volume worth impacting invetory decisions at your local discounter.
(Effectively) Nobody carries it in volume because (effectively) nobody uses it in volume anymore.
At least not in any volume worth impacting invetory decisions at your local discounter.
I have a couple of quarts of Quaker State straight 30 but seriously what's it going to do for you that 5W or 10W=30 won't likely do better?
You could contact a distributor in Victorville.
Originally Posted By: JohnnyJohnson
I have a couple of quarts of Quaker State straight 30 but seriously what's it going to do for you that 5W or 10W=30 won't likely do better?
Well it's awfully difficult to write an ode to the lack of 5w30 availability...
I have a couple of quarts of Quaker State straight 30 but seriously what's it going to do for you that 5W or 10W=30 won't likely do better?
Well it's awfully difficult to write an ode to the lack of 5w30 availability...
Originally Posted By: 1JZ_E46
That’s because it’s only used by lawnmowers these days. Your average 10W-30 will outperform straight 30 across the board.
Yep and my mower seems to have gotten along just fine on my left over top off oil for nearly 10 years now. 5W and 10W what ever full synthetic.
That’s because it’s only used by lawnmowers these days. Your average 10W-30 will outperform straight 30 across the board.
Yep and my mower seems to have gotten along just fine on my left over top off oil for nearly 10 years now. 5W and 10W what ever full synthetic.
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Originally Posted By: 1JZ_E46
That’s because it’s only used by lawnmowers these days. Your average 10W-30 will outperform straight 30 across the board.
Not even close. Straight SAE 30 HD will prolly blow the multi's cylinder wall wear number out of the water. As long as you don't have to worry about cold weather starts, straight grades are almost always better.
Now somebody like Redline who sells to multiple markets rates their straight grade racing oils as multi's for the street crowd. But in many applications straight grades do really well.
Straight grades are the preferred for seriously expensive engines like Ships engines where an overhaul is $100,000 if it's an penny. They are quite common in marine and in light aviation. Drop by most small airport lube shops and there are lots of straight grade choices.
These applications do not like VII's of any kind ...
The closest generally avialble multi might be something like Delo 400 15W-30 SD (severe duty) with minimal VII's added.
But you can get SAE straight grades at most tractor shops, Farm & Fleet stores, etc.
That’s because it’s only used by lawnmowers these days. Your average 10W-30 will outperform straight 30 across the board.
Not even close. Straight SAE 30 HD will prolly blow the multi's cylinder wall wear number out of the water. As long as you don't have to worry about cold weather starts, straight grades are almost always better.
Now somebody like Redline who sells to multiple markets rates their straight grade racing oils as multi's for the street crowd. But in many applications straight grades do really well.
Straight grades are the preferred for seriously expensive engines like Ships engines where an overhaul is $100,000 if it's an penny. They are quite common in marine and in light aviation. Drop by most small airport lube shops and there are lots of straight grade choices.
These applications do not like VII's of any kind ...
The closest generally avialble multi might be something like Delo 400 15W-30 SD (severe duty) with minimal VII's added.
But you can get SAE straight grades at most tractor shops, Farm & Fleet stores, etc.
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I got two 2-gallon jugs of Tractor Supply "Mystic" SAE 40 last year for $8.99 each. The D-7 loves that stuff
Mystic is good oil. Check out their analysis at PQIA
Mystic is good oil. Check out their analysis at PQIA
Originally Posted By: BrocLuno
Originally Posted By: 1JZ_E46
That’s because it’s only used by lawnmowers these days. Your average 10W-30 will outperform straight 30 across the board.
Not even close. Straight SAE 30 HD will prolly blow the multi's cylinder wall wear number out of the water. As long as you don't have to worry about cold weather starts, straight grades are almost always better.
Now somebody like Redline who sells to multiple markets rates their straight grade racing oils as multi's for the street crowd. But in many applications straight grades do really well.
Straight grades are the preferred for seriously expensive engines like Ships engines where an overhaul is $100,000 if it's an penny. They are quite common in marine and in light aviation. Drop by most small airport lube shops and there are lots of straight grade choices.
These applications do not like VII's of any kind ...
The closest generally avialble multi might be something like Delo 400 15W-30 SD (severe duty) with minimal VII's added.
But you can get SAE straight grades at most tractor shops, Farm & Fleet stores, etc.
Then why did the industry move away from straight 30? Straight 30 sounds good for sustained use applications (marine/industrial), not engines that cold-start every morning and have multiple on/off events during the day (passenger cars).
Originally Posted By: 1JZ_E46
That’s because it’s only used by lawnmowers these days. Your average 10W-30 will outperform straight 30 across the board.
Not even close. Straight SAE 30 HD will prolly blow the multi's cylinder wall wear number out of the water. As long as you don't have to worry about cold weather starts, straight grades are almost always better.
Now somebody like Redline who sells to multiple markets rates their straight grade racing oils as multi's for the street crowd. But in many applications straight grades do really well.
Straight grades are the preferred for seriously expensive engines like Ships engines where an overhaul is $100,000 if it's an penny. They are quite common in marine and in light aviation. Drop by most small airport lube shops and there are lots of straight grade choices.
These applications do not like VII's of any kind ...
The closest generally avialble multi might be something like Delo 400 15W-30 SD (severe duty) with minimal VII's added.
But you can get SAE straight grades at most tractor shops, Farm & Fleet stores, etc.
Then why did the industry move away from straight 30? Straight 30 sounds good for sustained use applications (marine/industrial), not engines that cold-start every morning and have multiple on/off events during the day (passenger cars).
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Also, most straight 30s these days are low-budget offerings for mowers, etc, while multigrades carry stringent specs. It’s not an apples to apples comparison, as there’s far more that differs than just base oil viscosity and VII between straight 30 and multigrades on the shelf today.
I guess what I’m trying to say is that it’s not a good/fair comparison, because there are far more variables that differ (beyond base oil and VII) between SAE 30 and a multigrades.
I guess what I’m trying to say is that it’s not a good/fair comparison, because there are far more variables that differ (beyond base oil and VII) between SAE 30 and a multigrades.
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Yeah, I would not think lawn mower oil from some off brand would be good. But straight grade SAE 30 HD say oil from teh local John Deere dealer would be excellent. Or any of the Phillips 66 aviation oils
Originally Posted By: BrocLuno
Straight grades are the preferred for seriously expensive engines like Ships engines where an overhaul is $100,000 if it's an penny. They are quite common in marine and in light aviation. Drop by most small airport lube shops and there are lots of straight grade choices.
These applications do not like VII's of any kind ...
You also forgot the Detroit Diesel/MTU 2-stroke diesels which also don't like VII and using a multigrade 15W-40/5W-40 is a recipe for high oil consumption and a rebuild.
For that reason, a parts house near me stocks Delo 100 monograde for Detroit 2-strokes. There aren't too many 6V/8V-92s in buses and fire trucks anymore but they are still a popular marine engine.
Straight grades are the preferred for seriously expensive engines like Ships engines where an overhaul is $100,000 if it's an penny. They are quite common in marine and in light aviation. Drop by most small airport lube shops and there are lots of straight grade choices.
These applications do not like VII's of any kind ...
You also forgot the Detroit Diesel/MTU 2-stroke diesels which also don't like VII and using a multigrade 15W-40/5W-40 is a recipe for high oil consumption and a rebuild.
For that reason, a parts house near me stocks Delo 100 monograde for Detroit 2-strokes. There aren't too many 6V/8V-92s in buses and fire trucks anymore but they are still a popular marine engine.
O'Reilly keeps Chevron 30 behind the counter in the back room. Super special stuff. Most people are unworthy of having such a special oil.
Mag1 makes a nice looking SAE30, it's API SN approved
https://mag1.com/products/passenger-car-motor-oil/monograde-motor-oil/mag-1-sae-30-motor-oil/
Quote:
TYPICAL PROPERTIES
Boron, wt. % 0.018
Calcium, wt. % 0.19
Color 3
Flash Point °C 210
Flash Point °F 410
Gravity, °API 29.85
High Temperature / High Shear Vis at 150°C, cP 3.38
Molybdenum, wt. % 0.004
Noack Volatility, % loss 6.1
Phosphorus, wt. % 0.077
Pour Point °C (°F) -33°C (-27°F)
Specific Gravity @ 60°F (15.6°C) 0.877
Sulfated Ash, wt. % 0.92
Sulfur, wt. % 0.3
TBN, mgKOH/g 7.0
Viscosity @ 100°C cSt 10.94
Viscosity @ 40°C cSt 87.96
Viscosity Index 110
Zinc, wt. % 0.085
https://mag1.com/products/passenger-car-motor-oil/monograde-motor-oil/mag-1-sae-30-motor-oil/
Quote:
TYPICAL PROPERTIES
Boron, wt. % 0.018
Calcium, wt. % 0.19
Color 3
Flash Point °C 210
Flash Point °F 410
Gravity, °API 29.85
High Temperature / High Shear Vis at 150°C, cP 3.38
Molybdenum, wt. % 0.004
Noack Volatility, % loss 6.1
Phosphorus, wt. % 0.077
Pour Point °C (°F) -33°C (-27°F)
Specific Gravity @ 60°F (15.6°C) 0.877
Sulfated Ash, wt. % 0.92
Sulfur, wt. % 0.3
TBN, mgKOH/g 7.0
Viscosity @ 100°C cSt 10.94
Viscosity @ 40°C cSt 87.96
Viscosity Index 110
Zinc, wt. % 0.085
AZjeff
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Originally Posted By: Chris142
I know not many uses for it any more. Most places only stock it in 1 brand. Bummer.
Is 15W-40 spec'd for your '57 Case tractor or is it better oil than 30wt? Seems like a 60 year old tractor would love straight 30.
I know not many uses for it any more. Most places only stock it in 1 brand. Bummer.
Is 15W-40 spec'd for your '57 Case tractor or is it better oil than 30wt? Seems like a 60 year old tractor would love straight 30.
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