I just might try a monograde this summer
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I will be trying a straight 30 weight also,after scoring 60 gallons of 30 weight Delo for .99 each at AZ. Check out the thread in the rebate section...
What is the point?
Other than lose gas mileage.
I am using a 75/25% mix of SAE 30 Delo and 5w20 Havoline in my wife's Honda and there is NO dip in gas MPG.
Keep in mind that the Delo 400 SAE 30 is made with Group II basestock, and is good down to 15F, as opposed to 40F in most other SAE 30's.
Great stuff!
P.S. GO STEELERS!
Great stuff!
P.S. GO STEELERS!
I'll be using the Delo SAE 30...for a long time. No downsides above freezing. It's a thin as 15w-40 at +40c. All my trips are long, that's all that matters.
75% Delo (3 quarts)
25% Havoline 5w20 (1 quart)
1998 Civic EX - 5 speed
135,000 miles
25% Havoline 5w20 (1 quart)
1998 Civic EX - 5 speed
135,000 miles
Since nearly all of my trips are long highway trips, I also was thinking on the side when I came across the 99 cent delo 30 weight oil. I figured I would pick up two gallons, one fill for the car and the leftover 5 quarts or so would be for the generator and lawn mower. I'd only do it for the curiosity of UOA results and to see what the difference in consumption would be if any. Either way the nearest Autozone didn't have the 30 weight and I didn't have the time to drive around and search for something that I only would need a quart of in the summer, a gallon would probably last me a few years depending on how often the equipment gets used. It would be great to see those UOA results.
Triple_Se7en
$50 Site Donor 2024
If I were going mono, I would do straight 20W. A poster's father used the Quaker State 20W for 220K -- then sold the vehicle to his son - who is using it for college. Maybe he will read this thread & type a few words.
I like straight weights because of the shear resistance. Yea you lose a MPG or 2 but I can live with that for several months.
Besides, I've never tried a straight weight before other than of course our lawnmower. I'll be anxious to see how the UOA turns out myself,,,op
Besides, I've never tried a straight weight before other than of course our lawnmower. I'll be anxious to see how the UOA turns out myself,,,op
For most of their cars General Motors recomends 5W-30.Then they say 10W-30 can be used at above zero temperatures.If neither of those oils are available straight #30 can be used above 50 degrees.Just make sure of the rating.
Before 10W-30 oils came along they recommended 10W in the winter (below 20 deg.) and 20 in the summer.30 for high speed driving above 90 deg...engines had no problems with that....and for below -20 deg. add 10 percent kerosene.Engines reved a lot higher back then.Many cars had 4.11 rear ends and at 60 MPH were turning over 3000 RPM + the oils had very little additives.Bearing clearances were just as tight as today -as low as .0005".
Before 10W-30 oils came along they recommended 10W in the winter (below 20 deg.) and 20 in the summer.30 for high speed driving above 90 deg...engines had no problems with that....and for below -20 deg. add 10 percent kerosene.Engines reved a lot higher back then.Many cars had 4.11 rear ends and at 60 MPH were turning over 3000 RPM + the oils had very little additives.Bearing clearances were just as tight as today -as low as .0005".
The mileage difference will be undetectable. The difference may be untill the oil temp starts to warm. The Delo will work.
http://www.chevron.com/products/prodserv/nafl/auto/content/faq.shtm#passenger
SAE Viscosity Grade
Cold Starting Temperature Conditions
Descriptions
5W-30 -13 F Provides excellent fuel economy and low temperature performance in most late model automobiles. Especially recommended for new cars.
10W-30 0° F Most frequently recommended viscosity grade for most automobile engines, including high performance multi-valve engines and turbo-charged engines.
10W-40 0° F The first multi-grade introduced. A good choice for controlling engine wear and preventing oil breakdown from oxidation due to hotter-than-normal running conditions. Note: Always check your owner's manual or warranty requirements before using this grade.
20W-50 15° F Provides maximum protection for high performance, high RPM racing engines. Excellent choice for high temperature and heavy loads such as driving in the desert or towing a trailer at high speeds for long periods of time.
SAE 30 15° F
SAE 40 32° F For cars and light trucks, where recommended by manufacturers.
Not recommended when cold temperature starting is required.
SAE Viscosity Grade
Cold Starting Temperature Conditions
Descriptions
5W-30 -13 F Provides excellent fuel economy and low temperature performance in most late model automobiles. Especially recommended for new cars.
10W-30 0° F Most frequently recommended viscosity grade for most automobile engines, including high performance multi-valve engines and turbo-charged engines.
10W-40 0° F The first multi-grade introduced. A good choice for controlling engine wear and preventing oil breakdown from oxidation due to hotter-than-normal running conditions. Note: Always check your owner's manual or warranty requirements before using this grade.
20W-50 15° F Provides maximum protection for high performance, high RPM racing engines. Excellent choice for high temperature and heavy loads such as driving in the desert or towing a trailer at high speeds for long periods of time.
SAE 30 15° F
SAE 40 32° F For cars and light trucks, where recommended by manufacturers.
Not recommended when cold temperature starting is required.
Left out this part:
What grade of motor oil do I use in my car?
Check your owner's manual to select the correct SAE viscosity grade. Your car manufacturer will specify different grades of motor oil based upon the temperatures in which your car is being operated. Chevron Supreme Motor Oils come in a variety of SAE viscosity grades. As a guideline:
What grade of motor oil do I use in my car?
Check your owner's manual to select the correct SAE viscosity grade. Your car manufacturer will specify different grades of motor oil based upon the temperatures in which your car is being operated. Chevron Supreme Motor Oils come in a variety of SAE viscosity grades. As a guideline:
The reason I think its a bad Idea is that with a straight 30 wt oil you are pushing 300 cSt. oil through those oil lines at 68F. With multigrade 30 wt. you are dealiong with 150 cSt oil (Half as thick) With 10W-30 oil the shearing won't be that much even with conventional oil.
Al
Member # 65
posted February 05, 2006 07:59 PM
"The reason I think its a bad Idea is that with a straight 30 wt oil you are pushing 300 cSt. oil through those oil lines at 68F. With multigrade 30 wt. you are dealiong with 150 cSt oil (Half as thick) With 10W-30 oil the shearing won't be that much even with conventional oil."
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Actually, it's more like 200cSt @68*F. 10W30 is roughly 350-360cSt @50*F. It's also roughy 735cSt @32*F. Most 10W30's can be recommended at/below freezing (it's in several of my auto's manuals). Your engine will not know the difference running SAE30 in the spring/summer/fall.
Also, alot of 10W30's shear to a high 20wt.
Member # 65
posted February 05, 2006 07:59 PM
"The reason I think its a bad Idea is that with a straight 30 wt oil you are pushing 300 cSt. oil through those oil lines at 68F. With multigrade 30 wt. you are dealiong with 150 cSt oil (Half as thick) With 10W-30 oil the shearing won't be that much even with conventional oil."
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Actually, it's more like 200cSt @68*F. 10W30 is roughly 350-360cSt @50*F. It's also roughy 735cSt @32*F. Most 10W30's can be recommended at/below freezing (it's in several of my auto's manuals). Your engine will not know the difference running SAE30 in the spring/summer/fall.
Also, alot of 10W30's shear to a high 20wt.
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