Cheaper than buying four individual quarts and cheaper by the get this way than buying a case. 
Pierce A
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
September 17, 2025
 
20W-50 
Tasted great!!
Austin C
August 1, 2025
 
770 C
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
July 29, 2025
 
Its oil
L&t A
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
July 9, 2025
 
Great Oil. What baffles me is that the price per OZ / Quart is cheaper if you buy the individual bottles in the 12 qt case rather than the gallons. Why is that???
Matthew M
July 1, 2025
 
All received very promptly as advertised.
George F
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
February 26, 2025
 
Honey colored and slippery.  Did not test for taste 
J &
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
October 22, 2024
 
It’s oil, what can I say
Donald M
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
July 10, 2024
 
Paul W
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
July 3, 2024
 
So much easier to use when doing a complete oil change on the twin engine.
Herb H
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
April 19, 2024
 
The gallon size is great for oil changes. 
Chris S
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
April 12, 2024
 
Best oil in my opinion 
Michael B
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
January 8, 2024
 
As expected.  Larger container size eases oil changes.
Rich P
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
January 2, 2024
 
Greg D
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
November 7, 2023
 
Great oil! Keeps engine cool and lubricated!
Genavco A
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
October 19, 2023
 
Allows for faster/more efficient oil changes. I pick up at the Aircraft Spruce regional warehouse, 10 minutes from the house, so it couldnt be easier.
Richard B
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
September 5, 2023
 
Michael L
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
August 8, 2023
 
Always a good buy - never fails - recommended to all my customers.
Integrity A
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
April 13, 2023
 
Maker says it is the best.
Bryan E
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
March 31, 2023
 
My oil arrived in a timely manner and was securely packaged.  This quantity of oil allows me 2 oil changes before ordering oil again.
David F
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
March 21, 2023
 
Good stuff
Genavco A
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
March 3, 2023
 
Switched from Aeroshell on IA recommendation. Cold starts this winter proved this oil flows well at 26 degrees Fahrenheit. Oil pressure comes right up.
Thanks Spruce for providing
James D
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
February 4, 2023
 
Fair Price Good Product, Great Servoce
Edward L
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
December 2, 2022
 
This is great oil, and the gallon jugs are handy for oil changes.  
Jess G
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
May 14, 2022
 
It is engine oil. What is there to say? It is slippery. 
Tim J
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
February 2, 2022
 
Mike Z
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
January 18, 2022
 
You guys are great 
Roger J
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
December 31, 2021
 
EXCELLENT
Men I
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
December 13, 2021
 
This was a replacement item for two gallon jugs of oil that were received earlier and had leaked significant amount of oil into the shipping boxes and packing material.  These two jugs were also placed in individual plastic bags as secondary containment
William R
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Gallon
 
October 20, 2021
 
In the case of 4 gal containers of Phillips 66XC 20W50 aviation oil, two containers were received with loose screw tops which resulted in significant oil leakage into the shipping container and the enclosed packing materials.  Oil jugs of this size should be shipped in plastic bags to provide added  protection.
William R
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
October 20, 2021
 
Edward L
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
August 18, 2021
 
Best way for me to complete oil changes. I dont understand why this is more expensive per ounce than individual quarts...
Matthew M
Verified Purchase
Phillips 66 X/C Aviation Oil 20W50 Case Of 4 Gal
 
June 30, 2021
 
Its oil, its priced right, and I can use it all year.
Doug 
May 30, 2021
 
Ive used this oil exclusively for many years in many engines and feel its as good as oil can be. Recently tore down an engine that went 3000 SMOH (except cyls) and the crank polished out to standard as well as the cam, lifters, gears etc.  I also change oil in many other conts and lycomings and it always seems the filters from engines using Phillips are usually cleaner inside.
Pat 
May 3, 2021
 
Easy to order, arrived on time and undamaged - no problems at all 
Paul K
April 19, 2021
 
Fast and accurate delivery, well-secured with careful packaging.
John A
April 5, 2021
 
Very prompt service and the response on shipping details was quick and accurate.
Robert L
March 24, 2021
 
From ordering to receiving - great! Including all recent purchases!  5
Thanks 
Wayne 
March 8, 2021
 
I like to use this oil because my Cessna 150 sits sometimes for 3 months or more. The oil guards against corrosion and my engine runs great all the time. Oil burn is very low also.
Stephen 
February 11, 2021
 
Bottles of oil in a box delivered to doorstep, quick comparable in price to driving across town.
Joe C
February 10, 2021
 
exactly what I ordered.  shipped immediately.   great service.
Winston H
February 10, 2021
 
Great price for oil and reasonable shipping costs.  I recommend slipping over to Aircraft Spruce & Specialty Co. for most of your lubricating needs.
Gary R
January 15, 2021
 
Well packed and quickly shipped.
Jack W
December 11, 2020
 
Great product delivered in a timely period. 
Greg C
November 16, 2020
 
Shipping was on time and the product we have used for years.
(We have had no problems with this product)
Donald F
October 26, 2020
 
Excellent oil, Excellent service by Aircraft Spruce!!!
Michael 
October 6, 2020
 
Arrived in two days - great service
Sarah N
October 5, 2020
 
Just the oil needed for frigid northern winters.  Been using for 30 years.  Engines consistently go beyond TBO.
Walter A
September 22, 2020
 
The oil arrived quickly and at a great price since I purchased in bulk and got free shipping. However, one of the gallon jugs did leak out into the box but when I called the company they were more than happy to replace it.
Sarah T
September 17, 2020
 
good product
Jeffrey M
September 8, 2020
 
It’s Oil!
Fast shipping.  
Thanks
Kubs 
September 3, 2020
 
Phillips X/C 20w50 is a great all-around oil for nearly any aircraft, any season. Aircraft Spruce always has a competitive price, and usually with the shipping is a better deal than others. Their service has always been fast - usually I get any item within 2 days with no extra shipping charge. Great company, great oil - cant go wrong.
Stephen M
August 12, 2020
 
I settled in this oil after some issues with other brands.  It seems to do a great job of suspending the lead sludge we all get from 100LL. 
Stephen 
August 7, 2020
 
I like the gallon bottles for oil change time. You get a 4 for 1 in uncapping. Its not really cheaper per ounce, but its convenient.
Erich S
August 5, 2020
 
Perfect customer service at Corona airport
Newport F
August 4, 2020
 
 Service and delivery were great. Enjoyed doing business with you.
Gayla H
July 31, 2020
 
Product was nicely packed with no damage and came on time.  As for the oil performance, that will have to be determined.
James P
July 29, 2020
 
This is a good all season semi-synthetic.  It was recommended by my mechanic and seems to work as advertised.
Robert W
July 29, 2020
 
The oil is fine, but probably wont know until after a few 100 hours or so. 
The outstanding part was that I could just drive over to the Chandler Airport to pick it up at your warehouse there.
Thanks,
Mike
Michael W
July 22, 2020
 
Switched to Phillips XC 20W50 four years ago and have never looked back on this
decision.
Dwight T
July 21, 2020
 
Quick shipping. Great product.
John 
July 11, 2020
 
good oil
Lawrence R
July 2, 2020
 
Great service cant believe how fast it got delivered to me with standard shipping. Great product.
Steve P
June 11, 2020
 
This was a great price, with prompt free shipment based on the amount ordered. I was surprised that rather than stick a label on each case, two cases were packed per shipping box. No problem, but be prepared to get rid of a lot of (recyclable) shipping materials.
Bobs A
June 11, 2020
 
Fast and efficient 
Dana K
May 7, 2020
 
I always get reasonable prices(usually the best price) from Aircraft Spruce and quick shipping. Great place to do business with. 
H. C
May 7, 2020
 
Great oil, deliveried quickly.
Keith C
May 2, 2020
 
Great price, especially if you buy enough to get the free shipping.
Easy to order online and it arrived quickly.
Don L
May 1, 2020
 
Good Engine oil, Fair Price.
Ed H
April 23, 2020
 
Aircraft is happy
Alain P
April 17, 2020
 
Prompt service
Mike C
April 16, 2020
 
Been in Aircraft Maintenance full time for 50 years. Have seen different oils come and go. This is the best oil ever for Airplane Piston Engines. 
Rocket A
April 10, 2020
 
Have been running oil in my Lycoming since I’ve owned it and couldn’t be happier. The occasional leak and messy belly are the trade-offs but would definitely recommend over running no oil at all. Two thumbs up. 
Casey M
March 14, 2020
 
Good oil, good price, fast shipping      
Phil 
March 12, 2020
 
Switched to Phillips since Aeroshell stopped selling oil in 12 count cases and changed their bottles. The Phillips bottles are a much better design not to mention the oil is a lot cheaper. 
John K
January 23, 2020
 
Delivered on time and in good condition 
Daniel T
January 9, 2020
 
Its oil. It is viscous when it is supposed to be, and less viscous when its not. 
Steven T
December 15, 2019
 
Even with shipping cost price is much better than our local distributor!
Pat C
November 28, 2019
 
every thing was on time, and it perfect condition. thanks
Van H
November 8, 2019
 
I believe I ordered a single case of oil.  However, two cases were shipped.  Im not sure whether the extra case was a mistake taking my order, or a mistake when it was packaged.  If the second case was paid for, then that is fine.  Ill put it to good use.  If it was shipped by mistake, please make arrangements for me to pay for it.
Ive been doing business with Spruce for 20 years and this is the first time theres been an error.  Stuff happens!
Kim Hunter
Kim H
October 21, 2019
 
Its sticky and makes a mess on the bottom of my airplane.  They need a smart oil that turns to polished wax when it contacts painted surfaces.
Bob 
October 21, 2019
 
Excellent oil at a reasonable price. 
H. C
October 17, 2019
 
Use it in my own planes and recommend it to all my customers. Exceptional customer service. 
Michael 
October 3, 2019
 
I never have any trouble getting the product I want from Aircraft Spruce in a timely manner. Always arrives on time.
Eckward M
August 16, 2019
 
Highly recommended...
Charles M
July 21, 2019
 
      Meets all the requirements.
Charles W
June 13, 2019
 
I have always used A/S in our aircrafts. Never had any issues. 
Jim J
March 11, 2019
 
This stuff is super oily.  
Jj 
December 11, 2018
 
      Works great. Arrived the next day
Alain P
September 22, 2018
 
   good oil, buy the gal. size and save   
George J
June 23, 2018
 
I love being able to use this as break in oil instead of mineral oil and then keep clients on it. 
Top F
June 17, 2018
 
  Been using Phillips oil in my Cherokee 140 since I bought in in 1984.  Been very satisfied with it.    
Walter B
March 12, 2018
 
      Ran A/S 15W-50 for years. After reading and talking to various pilots and owners, I am going to make the switch in our aircraft, and if goes well, I will be stocking this for my customers.
Westwood A
March 8, 2018
 
Aircraft Spruce is always so quick to ship!!  As always best prices and fast shipping!      
David 
February 4, 2018
 
     The former owner of this aircraft used this oil and the engine runs very well. My order was filled amazingly fast, I received it the next day.
Alain P
November 25, 2017
 
      Have been using this oil for a long time and Ive always had great results with it. The cost per quart is affordable and most of the Aircraft Ive flown have used this oil with no complaints. 
Kelly W
September 11, 2017
 
Like the oil... oil is oil, so cheaper is best.  Aviation engines cant really take advantage of the benefits of synthetic oil unless you have a turbo-charger.  The temps are low and the use period is short.
Those gallon jugs wont rest upside down in my funnel though.  I like to let the bottle drain for a while just to minimize the amount of oil that goes into the landfill.  Its hard with the gallons.   
Opie 
August 18, 2017
 
      I have used this oil for years. It is great for breaking in and for any type of operation. I dont have to switch during the winter and summer and it meets OEM specs. But its a little lower-cost doesnt hurt either.
Scott B
August 3, 2017
 
      
Vladimir H
March 19, 2017
 
I purchased a case of Phillips 66 x/c 20w 50 from AC Spruce and it was ground shipped.  On opening the box and removing the case of oil I found that the box was saturated with oil.  The case was undamaged and had never been opened.  I found one Qt. container had a cross threaded cap and three others were loose.  It was a real mess.  You absolutely  have to put labels on the outside of the shipping box saying  THIS SIDE UP.  Needless to say, Im going to go back to buying oil locally.  The few dollars I saved didnt come close to worth it.
As for the oil itself.  Its Oil.  It does what its supposed to.
David A
November 22, 2020
 
In the case of oil, one of the lids was not completely capped and about 1/4 of the quart leaked into the box. Case was smoked and packing paper within. 
Kevin L
October 19, 2020
 
On my first order of a case with Spruce it arrived having leaked in the box and on other things I had ordered. On this past order of 2 cases, all arrived clean and secure. Will continue to order. Thanks!
Bill 
April 27, 2020
 
      Went with the gallons to put fewer bottles into the trash. 
Cindy M
September 11, 2017
 
Ordered 5 cases.  Shipping time good.  One of the cases had a quart with a loose cap, oil leaked out and made a mess.
Peachtree A
March 31, 2021
 
Shipping cost would prevent me from buying again. Cheaper at the FBO.
Eric 
February 5, 2021
 
I was a little disappointed in this purchase. The oil had been  re boxed and oil was leaking from one or more of the 1 quart  containers into the  plastic bag  used as internal packaging.
Steve D
November 1, 2019
 
2 of 8 gallon containers were leaking causing a huge mess. I don’t have an answer to this problem because cases were sealed from factory 
Bob S
August 18, 2019
 
When I purchased my plane it had 580 hours on the engine. During an inspection, a fair amount of corrosion was found, requiring an overhaul. This is why I stick to straight weight oils and wont ever use Phillips. 
Dm 
October 21, 2018
 
There’s no foil seal or ‘lock’ ring on the cap. So two of the caps backed off and leaked oil all over the inside of the box and all over products. There needs to be SOME kind of seal on the containers. 
Jon N
December 9, 2019