🚛 Drive smarter, last longer — SynShield your diesel’s future today!
Schaeffer’s SynShield OTR Plus 10W-30 is a premium synthetic-plus diesel engine oil engineered for heavy-duty trucks and buses. It delivers superior engine protection against wear, oxidation, and soot buildup while enhancing fuel economy and cold start reliability. Compatible with 2007+ emission-compliant engines, it meets API CK-4 standards and incorporates proprietary friction modifiers for maximum efficiency and durability.
| ASIN | B06W9G2388 |
| Best Sellers Rank | #316,753 in Automotive ( See Top 100 in Automotive ) #1,207 in Motor Oils |
| Brand | Schaeffer's |
| Brand Name | Schaeffer's |
| Compatible with Vehicle Type | Bus, Truck |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 45 Reviews |
| Global Trade Identification Number | 00744954027583 |
| Included Components | 1 gallon bottle |
| Item Type Name | SynShield |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Schaeffer Manufacturing Co. |
| Manufacturer Part Number | 0711CK4-006S |
| Manufacturer Warranty Description | Check with manufacturer. |
| Package Information | Bottle |
| UPC | 744954027583 |
| Unit Count | 128.0 Fluid Ounces |
| Vehicle Service Type | Bus, Truck |
| Viscosity | 10w-30 |
L**S
Best oil I've found for a 6.0 Powerstroke
As a retired Ford Technician I am very pleasantly surprised by this oil. I have ran Motorcraft and Valvoline for decades. But this oil is amazing actually picked up 2mpg in my 6.0 powerstroke with this oil. Now that I am planning to open my own shop this will be my go to Diesel oil and will run in my personal truck.
D**N
Oil is for my diesel
Typically the oil in my diesel turns black shortly after a oil change. (this is normal) The Schrieffer oil is not doing that as quickly. Very happy with the oil. I will review it again at 4000 miles during the my next oil change.
J**C
No me quieren regresarme dinero no lo recomiendo
Reproductor Muy Bueno pero noso responsables con la devolu cion de dinero
A**R
Amazing for powerstrokes with HUEI injectors.
I use it for my 2005 6.0l powerstroke f350. Amazing product, the engine fires right up cold starts hot starts does not matter. My new go to for oil. I bit more money but I don't have to run a Lucas additive anymore.
W**R
Great stuff
Its green
C**E
Not 100% Synthetic
One thing to point out this OTR 10W-30 is (0711CK4-006S) - which is a Semi-Synthetic... The (9012) OTR 10W-30 - (09012CK4-006S) is the 100% Full Synthetic - similar to the formulation of their 9000 5W-40 Full synthetic... I did not realize this until now - I spent 30min looking over Schaeffers website & finally found 2 types of OTR 10W-30... Just wanted to point this out - so buyers who prefer a 100% Full Synthetic was not mislead...
V**I
Five Stars
After 2 hours run time it's still clean.
P**L
Great price
I run this in my 2015 F250 6.7. They actually sent the correct oil this time. Change oil and filter every 5k miles.
Trustpilot
Hace 4 días
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