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Schaeffer Manufacturing Co. 9000CK4-006S SynShield OTR Plus Full Synthetic Diesel Engine Oil 5W-40 is a high-performance engine oil designed to enhance fuel economy while ensuring engine durability. With superior cold weather startability and exceptional heat resistance, this oil is perfect for demanding conditions. Its advanced formulation provides outstanding soot control and deposit dispersion, making it a top choice for diesel engines.
| Manufacturer | Schaeffer Manufacturing Co. |
| Brand | Schaeffer Manufacturing |
| Model | 9000CK4-006S |
| Item Weight | 7.48 pounds |
| Package Dimensions | 11.25 x 8 x 4.25 inches |
| Country of Origin | USA |
| Item model number | 9000CK4-006S |
| Manufacturer Part Number | 9000CK4-006S |
| Viscosity | 5w-40 |
M**K
Great oil
Great oil, it’s a little pricey, but works well! My truck does do well with it and my fuel efficiency has gone up. The only suggestion I would make for seller is to tape a seal around the cap. I was worried because a lot of people had issues with oil leaking out because of the seal. I did not have any issues with it leaking, but I only ordered one. I found it cheaper at a local shop.
C**N
Best Diesel Engine Oil
I’ve ran this for years and have never had any issues. Definitely worth the money.
K**R
Best oil
Great oil, motor is quieter. Like a lot.
J**U
The best
A little expensive but oil is the life of your engine. Worth the extra money.
M**S
Product review
Excellent product
O**7
Excellen oil for my L5P
I was previously using AMSOil and was annoyed by the DEF injector tick that became much louder when I started using it. After switching to the Schaeffer 5W40 the noise it nearly non existent. I just reordered for my next oil change. This in combination with the WIX XP filter will be my go to from now on.
M**Y
Great price
Used oil before. Only oil I now use for all my vehicles.
Z**R
Great oil
Best oil money can buy
Trustpilot
4 days ago
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