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Mixing Oil

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Mixing Oil
#1
saanich2006 Avatar
saanich2006 Robert Browning
Atlanta, GA, USA   USA
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1968 Chevrolet Corvette
1973 MG MGB
I had someone try to tell me for our MG car engines, it is best to mix regular VR1 20W50 oil and 20W50 VR1 synthetic oil.
I do not go along with this thinking.

What do you think?


Oil leak?? What oil leak? That puddle under the car is just sweat from all that horsepower!!

Law of Mechanical Repair - After your hands become coated with grease, your nose will itch and you'll have to pee.



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Re: Mixing Oil
#2
ghnl Avatar
ghnl Eric Russell
Mebane, NC, USA   USA
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1961 MG MGA "Calvin"
I don't understand the logic. Typically when mixed the mixture defaults to the lower standard. Regular VR1 20w-50 is more than adequate, why add some more expensive synthetic oil?


Eric Russell ~ Mebane, NC
1961 MGA #61, 1981 Alfa Romeo GTV6, 1984 Alfa Romeo Spider, 1991 Honda ST1100

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Re: Mixing Oil
#3
oleanderjoe Avatar
oleanderjoe Platinum AdvertiserAdvertiser Joseph Baba
Fresno, CA, USA   USA
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1962 Triumph Spitfire 4 (MkI) "SPITTY"
AMSOIL: which is a full synthetic, says that if you rae somplac, and are low on oil, yu can add regular oil to the engine. The Non-synthetic, will work fine, but as ERIC said, it defaults to the lower grade, nd AMSOIL says, doing this will shorten the longer change interval, :Actually the reason WHY" you put synthetic in, in the first place.
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Re: Mixing Oil
#4
saanich2006 Avatar
saanich2006 Robert Browning
Atlanta, GA, USA   USA
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1968 Chevrolet Corvette
1973 MG MGB
This is what I was thinking and I could see possible gain by doing this.

As Joe said, everything I have read says it will shorten the longer change interval

Thanks


Oil leak?? What oil leak? That puddle under the car is just sweat from all that horsepower!!

Law of Mechanical Repair - After your hands become coated with grease, your nose will itch and you'll have to pee.



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Re: Mixing Oil
#5
oleanderjoe Avatar
oleanderjoe Platinum AdvertiserAdvertiser Joseph Baba
Fresno, CA, USA   USA
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1962 Triumph Spitfire 4 (MkI) "SPITTY"
10-4 I believe the AMSOIL website gives that advice. Stay with what you know works.

In reply to # 4792029 by saanich2006 This is what I was thinking and I could see possible gain by doing this.

As Joe said, everything I have read says it will shorten the longer change interval

Thanks


IN ALL SUBJECTS.: For those who believe, no proof is needed. For those who don’t believe, no proof is possible.

"Strive for perfection in everything. Take the best that exists and make it better. If it doesn't exist, create it. Accept nothing nearly right or good enough"
Sir Henry Royce
co-founder of Rolls-Royce .

"I take no credit for my own, of another man's fame".
Joe Baba 2021


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Re: Mixing Oil
#6
Cabin Boy Avatar
Cabin Boy Bill Kortum
Arlington, WA, USA   USA
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1970 MG MGB "Buttercup"
1980 Harley-Davidson Touring
1988 Suzuki Samurai "Old Blue"
1998 Chevrolet Commodore "Beam'n'Water"    & more
Since most B's never get close to the recommended mileage for an oil change in a year , Why would a reduced recommended oil change mileage matter ?

I change mine twice a year , in the Spring and in the Fall .

The used oil looks like it was just changed .

I use the oil in the generator , lawnmowers , pressure washer and chain saw .

Just don't see the reason for the concern.

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Re: Mixing Oil
#7
spikemichael Avatar
spikemichael Platinum Member Michael Caputo
Canton, IL, USA   USA
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1973 MG MGB "Freebie"
1973 MG MGB
1974 MG MGB "Spike"
1976 MG MGB "Cecil"    & more
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.


Michael J. Caputo
'79, '77, '76, '74.5 (rubber dual SU), and '73 owner. Extensive experience in 12v Audio System design and installation. Vendor of Regalia and Promotional Products since 1993. Supplier of Accessories to MOSS. Forum Member since 2009; with a warped sense of humor since birth. Publisher of the annual MGB & GT Calendar, mailed worldwide.


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Re: Mixing Oil
#8
saanich2006 Avatar
saanich2006 Robert Browning
Atlanta, GA, USA   USA
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1968 Chevrolet Corvette
1973 MG MGB
In reply to # 4792061 by spikemichael I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.
I am not going to comment on an oil post.

Oh come on Michael. Please add your wisdom and two cents!!


Oil leak?? What oil leak? That puddle under the car is just sweat from all that horsepower!!

Law of Mechanical Repair - After your hands become coated with grease, your nose will itch and you'll have to pee.



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Re: Mixing Oil
#9
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B-racer Jeff Schlemmer
Shakopee, MN, USA   USA
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1950 Willys Jeep Pickup "Ratrod"
1964 Land Rover Series IIA
1971 MG MGB
What do you guys think is in a bottle of semi-synthetic or synthetic blend oil? Its not as technical as you imagine. Part synthetic, part not. winking smiley


jeff@advanceddistributors.com

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Re: Mixing Oil
#10
lewisrn Avatar
lewisrn Gold Member Bob L
Danville, IN, USA   USA
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1980 MG MGB "The "B"
In reply to # 4792149 by B-racer What do you guys think is in a bottle of semi-synthetic or synthetic blend oil? Its not as technical as you imagine. Part synthetic, part not. winking smiley

Yep - and it's all dino oil. The "synthetic" is just regular dino oil that's super refined and with different additives.

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Re: Mixing Oil
#11
Dwight Avatar
Dwight Dwight McCullough
Ham Lake, MN, USA   USA
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1974 MG MGB "THE 'B"
1975 MG MGB "Da ' B"
1979 MG MGB Limited Edition (LE) "N.A."
“The bitterness of poor quality remains long after the sweetness of low price is forgotten.”
― Benjamin Franklin -

Why not just use pure synthetic?
Way less friction/heat, way better cold lubrication, way better cleaning and way longer oil changes...

We ALL spend way more on our cars, [than we should] and then, Go cheap on lubrication?


That what insanity is; 'Doing the same thing over and over, expecting different results'

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Re: Mixing Oil
#12
drtyler Dane T
NW, GA, USA   USA
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1971 MG MGB
The additive packages for each of the two oils is likely different. Valvoline has each one blended to provide the best results. Some additives are synergistic, and some are not and actually have the opposite effect. If you mix the two, you will most likely end up with a lesser product than either of the originals.

It may not make a difference in the long run, but there is little reason to mix them.

In reply to # 4791985 by saanich2006 I had someone try to tell me for our MG car engines, it is best to mix regular VR1 20W50 oil and 20W50 VR1 synthetic oil.
I do not go along with this thinking.

What do you think?

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Re: Mixing Oil
#13
saanich2006 Avatar
saanich2006 Robert Browning
Atlanta, GA, USA   USA
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1968 Chevrolet Corvette
1973 MG MGB
In reply to # 4792194 by drtyler The additive packages for each of the two oils is likely different. Valvoline has each one blended to provide the best results. Some additives are synergistic, and some are not and actually have the opposite effect. If you mix the two, you will most likely end up with a lesser product than either of the originals.

It may not make a difference in the long run, but there is little reason to mix them.

I agree and was I was thinking. What sense does it make to mix the two!!??


Oil leak?? What oil leak? That puddle under the car is just sweat from all that horsepower!!

Law of Mechanical Repair - After your hands become coated with grease, your nose will itch and you'll have to pee.



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Re: Mixing Oil
#14
Lynxman Tor Arne Hustvedt
Bardufoss, Norway   NOR
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1966 MG MGB GT
Additives in oils are often added in an amount that is optimal. Too little is bad and too much is bad. Lowering or increasing the PPM of an additive can cause problems. I don't know the oild mentioned above, but as an example mixing an oil that has the right amount of a necessary additive for vintage engines with an equal amount of an oil that does not have that additive will halve the PPM of that additive. Here's a video that demonstrates how bad that can be:




Edited 1 time(s). Last edit at 2024-05-02 10:30 AM by Lynxman.

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Re: Mixing Oil
#15
glbishop Avatar
glbishop Gary Bishop
Spring Hill, FL, USA   USA
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1980 MG MGB MkIV
1984 Kawasaki Z550
That would be......Synthetic Blend.

Don't waste your money on synthetic oil or lab grown meat.

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