Tag Archive for: diesel oil

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Still Can’t Find Shell Rotella Diesel Engine Oil?

AMSOIL Signature Series Max-Duty Synthetic 5W-40 Diesel Engine Oil Supply chain issues have been affecting Shell Rotella diesel engine oils over the past several months in the United States and Canada.

We can offer a full supply of AMSOIL Synthetic Diesel Oils at wholesale prices. Contact us with the form on this page for a wholesale price list. We offer fast delivery with free shipping options.

AMSOIL diesel engine oils are a superb replacement for Shell Rotella diesel oils.

AMSOIL Substitutes For Each Shell Rotella Product

Shell Rotella T6 SAE 0W-40 Synthetic Diesel Engine Oil

AMSOIL Signature Series Max-Duty Synthetic 0W-40

Shell Rotella T6 SAE 5W-40 Synthetic Diesel Engine Oil

Premium- AMSOIL Signature Series Max-Duty Synthetic 5W-40
Commercial-grade- AMSOIL Heavy Duty Series Synthetic 5W-40

Shell Rotella T6 SAE 5W-30 Multi-Vehicle Full-Synthetic Diesel Oil

AMSOIL Signature Series Max-Duty Synthetic 5W-30

Shell Rotella T5 SAE 10W-30 Synthetic-Blend Diesel Engine Oil

Premium- AMSOIL Signature Series Max-Duty Synthetic 10W-30
Commercial-grade- AMSOIL Heavy Duty Series Synthetic 10W-30

Shell Rotella T5 SAE 15W-40 Synthetic-Blend Diesel Engine Oil

Premium- AMSOIL Signature Series Max-Duty Synthetic 15W-40
Commercial-grade- AMSOIL Heavy Duty Series Synthetic 15W-40

Shell Rotella T4 SAE 10W-30 Diesel Engine Oil

Premium- AMSOIL Signature Series Max-Duty Synthetic 10W-30
Commercial-grade- AMSOIL Heavy Duty Series Synthetic 10W-30

Shell Rotella T5 SAE 15W-40 Diesel Engine Oil

Premium- AMSOIL Signature Series Max-Duty Synthetic 15W-40
Commercial-grade- AMSOIL Heavy Duty Series Synthetic 15W-40

About AMSOIL Synthetic Diesel Oils

AMSOIL has two distinct diesel oil lines that can replace Shell Rotella products. The premium Signature Series Max-Duty Synthetics Diesel Oil line and the commercial-grade Heavy-Duty Synthetic Diesel Oil series.

AMSOIL Signature Series Max-Duty Synthetic Diesel Oils would be an upgrade over the T6 line. The Heavy-Duty Series would be the equivalent of the T6 Series.

AMSOIL Signature Series Max-Duty Synthetic Diesel Oil is world-class in every category. These oils surpass the minimum benchmark in the Detroit Diesel DD13 Engine Scuffing Test by 600%. Signature Series Max-Duty also offers industry-leading resistance to volatility.

Signature Series Max-Duty products deliver a service life of up three times the OEM service interval in heavy-duty diesel engines. Therefore, these products are robust and overbuilt.

AMSOIL Heavy-Duty Synthetic Diesel Oils are formulated with value in mind for fleets and the installer market. As such, they have a lower price tag than the Signature Series Max-Duty line. However, the Heavy-Duty Series still provides exceptional protection. These products exceed the Detroit Diesel DD13 Engine Scuffing Test by 400%. They also offer exceptional volatility resistance.

AMSOIL Heavy-Duty Series Diesel Oils should be changed at the interval prescribed by the equipment owner’s manual.

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Is 10W-30 Oil Too Thin For Ram 6.7L Cummins Engines?

A reader asks: I’ve got a 2019 Ram 2500 with the 6.7L Cummins diesel. My manual says to use 10W-30 motor oil meeting the MS-10902 or API CJ-4 specification. I’m used to running a 5W-40 or 15W-40 in my previous trucks. Isn’t 10W-30 a bit thin for this engine?

Our answer: We can assure you that a good 10W-30 diesel motor oil is safe for your engine. But let’s discuss an important detail to watch for on the oil bottle label. This detail will improve the odds that your engine will receive the best possible wear protection.

When buying diesel motor oil, look for the “API CK-4” designation. API CK-4 is the very latest diesel engine oil standard. It is backward-compatible with API CJ-4 and Chrysler MS-10902 (and therefore warranty-approved).

Is API CK-4 An Upgrade Over API CJ-4 Diesel Oils?

Yes. The API CK-4 standard has very lofty requirements in terms of oxidation resistance, shear stability and wear resistance. It is dramatically superior to API CI-4+ motor oils you may have used 15 years ago. It is even a significant step up from the previous API CJ-4 standard. One of the primary goals of the API CK-4 spec was to allow for the use of lower viscosity oils without sacrificing wear protection.

Why Did Chrysler Decide To Go With 10W-30 In The 6.7L Cummins?

The move toward thinner oils in engines, transmissions and differentials has been going on for years. The reason is simple. Automakers are under constant pressure to meet government-mandated fuel economy targets. Going to lower viscosity oils is a relatively simple way to make marginal mileage gains.

It may seem like wear control is being sacrificed to achieve slightly better fuel economy. This has not turned out to be the case. The motor oil industry is constantly raising the bar to strike that balance between improved fuel economy and satisfactory wear protection. The API CK-4 specification achieves this balance.

Is 5W-40 An Option In Newer 6.7L Cummins Engines?

All this being said, Chrysler does suggest that 5W-40 engine oil can be used in temperatures under 0°F (-18°C). So 5W-40 is certainly secondary option. If your engine is seriously modified or if the truck is used for extreme towing, 5W-40 is certainly viable. But again, under most conditions, 10W-30 diesel oil is perfectly safe.

Our Motor Oil Suggestions For RAM 6.7L Cummins Diesel Engines

We suggest AMSOIL synthetic diesel oils (of course). Some brands may meet the API CK-4 standard. AMSOIL CK-4 diesel products are designed to exceed this spec. Here are the options.

Signature Series Max-Duty Synthetic Diesel Oil is AMSOIL’s ultra-premium API CK-4 diesel motor oil line. It is available in both 10W-30 and 5W-40 for the Cummins 6.7. It is also available in 15W-40, 5W30 and 0W-40. This series is designed to out-perform on every front. The most important is wear control. Signature Series exceeds the Detroit Diesel Scuffing Test standard by 600%. It is also overbuilt for extended-drain capability.

Heavy-Duty Series Synthetic Diesel Oil is AMSOIL’s commercial-grade API-CK-4 diesel line. This line is also available in 10W-30 and 5W-40 for the Cummins 6.7L motor. It is also available in 15W-40. Heavy-Duty Series has a lower price tag for commercial fleets and cost-conscious consumers. But it still delivers top-notch wear protection. It beats the Detroit Diesel Scuffing Test standard by 400%.

In conclusion, check the bottle for the API CK-4 specification. You will receive the very latest diesel oil technology.

If you are interested in pricing for highly-effective AMSOIL Synthetic Diesel Engine Oils, contact us using the form on this page.

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Is Diesel Engine Oil OK For Motorcycles Engines and Transmissions?

KTM Motorcycle

Update: May, 2024

A reader asks: A lot of motorcycle owners use Shell Rotella T6 diesel oil in their engines/transmissions. Is there any downside to using diesel motor oil in motorcycles? As Shell Rotella can be found fairly cheap, why would I want to use the more expensive AMSOIL Motorcycle Oils?

Our Answer: Diesel motor oils can provide (somewhat) adequate service in motorcycle engines and transmissions. But diesel oil used as a motorcycle oil won’t necessarily provide good value. Even if it has a lower price tag.

Dedicated motorcycle oils have a precise additive package combination. This balance of ingredients delivers specific protective and performance characteristics. This chemistry will not be found in diesel motor oil as it is designed for its specific application.

The reason that diesel engine oils can be used in motorcycle engines is that they do not contain friction modifiers. The friction modifiers found in passenger car motor oils (for gasoline-powered car/truck engines) will quickly glaze wet-clutch plates.

Here are some of the features of AMSOIL Synthetic Motorcycle Oil that are not a consideration in the design of diesel engine oils.

Motorcycle Oil Vs. Diesel Engine Oil In Transmissions

The biggest knock on diesel engine oils in this case is that they are not formulated for motorcycle transmission use. When used in common sumps (for both engine and transmission), diesel oil can be prone to sheering down and losing viscosity. Some diesel engines have timing gears, but this is nothing like the concentrated thrashing of a motorcycle transmission. The meshing of gears in motorcycle transmissions can rapidly sheer down oils that are not equipped for that type of use. Therefore, this rapid thinning will also hurt the diesel oil’s ability to protect the engine in common sumps.

AMSOIL Synthetic Motorcycle Oils are loaded with ingredients that withstand heavy transmission use. AMSOIL is also famous for lowering transmission friction for buttery smooth shifting. This factor alone is well worth the step up to AMSOIL.

Wet-Clutch Performance And Longevity

Diesel oils may not cause clutch plate glazing, but they are not formulated with wet-clutch performance and preservation in mind. AMSOIL Synthetic Motorcycle Oils are formulated to fight clutch fade and provide consistent clutch “feel”. They deliver steady clutch performance under high-heat and extreme loads. Dedicated motorcycle oils will maintain the correct frictional properties over long service intervals.

Motorcycle Engine Oil Withstands High RPM And Heat

High revving motorcycle engines can red-line anywhere from 5500 rpm to well north of 10,000 rpm. They can also generate extreme heat. AMSOIL Synthetic Motorcycle Oils withstand extended periods of high RPM and extreme heat. The low-friction AMSOIL formulas famously provide cooler operating temps. This is especially true for air-cooled engines. AMSOIL has performed extensive testing to prove that their motorcycle oils can be exposed to long periods of extremely high heat (over 500°F!) and high RPM without breaking down.

AMSOIL Adds Anti-Rust Protection To Motorcycle Oil

When designing their synthetic motorcycle oils, AMSOIL borrowed anti-rust and corrosion technology from their Marine Engine Oil line. Engine internals are protected from moisture ingestion and long periods of off-season storage. Diesel engine oils would not contain this level of anti-corrosion ingredients. Therefore, they may not be as effective at protecting internal engine parts from rust.

Service Interval: Some Motorcycle Oils Are Extended Drain Capable

AMSOIL designs their V-Twin and Metric Motorcycle Oils for long service intervals. They can stay in service for up to double the interval as suggested by the engine manufacturer. AMSOIL formulates these oils to withstand the heat, transmission gear thrashing and high-RPM. They also have the capacity to hold clutch particles, transmission particles and combustion deposits in suspension over this interval. Diesel engines oils are not designed to provide this length of service. As mentioned, the meshing of gears in transmissions will quickly sheer down diesel motor oil and reduce its service life.

Where To Buy AMSOIL Synthetic Motorcycle Oil

A good synthetic motorcycle oil like AMSOIL is about the most cost-effective upgrade one can make to a motorcycle. Oildepot can offer the entire line of AMSOIL motorcycle oils and filters at wholesale prices. Request a wholesale price list using the form on this page or call us at 1-800-748-5781.

Conclusion

As we’ve shown, the formula for motorcycle oil is different from the chemistry required for diesel engines. Diesel engine oils are missing several key components. As a result, this can compromise wear control, performance and engine oil life. AMSOIL Synthetic Motorcycle Oils provides superior performance, better engine and transmission protection and longer service intervals.

Diesel engine oils like Shell Rotella may be relatively inexpensive. However, that does not necessarily mean that it is  good value for long-term use in motorcycles.

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How Much Engine Flush For Diesel Engine?

AMSOIL Engine and Transmission FlushA reader asks: I would like to perform an engine flush on my Ford 6.7L PowerStroke engine before switching to synthetic oil. How many bottles of AMSOIL Engine and Transmission Flush will do the job?

Our Answer: The number of bottles of AMSOIL Engine and Transmission Flush needed to flush an engine is based on the crankcase capacity. As diesel engines have larger oil capacities, they tend to require more than one bottle. Your 6.7L PowerStroke engine holds 12.4 litres (13.1 US quarts) of engine oil and therefore will require 2 bottles of AMSOIL Engine and Transmission Flush.

Below is the application rate for AMSOIL Engine and Transmission Flush.

Shown on the left is the engine oil capacity and on the right is the number of 473 ml (16 oz.) bottles of AMSOIL Engine and Transmission Flush required.

  • Up to 9.46 litres (10 US quarts) – One Bottle
  • 9.46 to 18.9 litres (10 to 20 US quarts) – Two Bottles
  • 18.9 to 28.4 litres (20 to 30 US quarts) – Three Bottles
  • 28.4 to 37.85 litres (30 to 40 US quarts) – Four Bottles

Doing an engine flush prior to using synthetic oil for the first time is a smart, cost-effective maintenance practice. This applies to both gasoline and diesel engines. The AMSOIL Engine and Transmission Flush cleans out deposits, gum, varnish and soot so that your new synthetic oil is not cleaning up these undesirable combustion by-products and sending them into circulation. This practice is especially helpful for diesel engines as they generate much more soot than gasoline engines.

High-quality synthetics oils like those from AMSOIL have strong detergent capabilities that will clean up deposits over time. It is a good idea to go after engine gunk with AMSOIL Engine and Transmission Flush so that your engine is starting out with a clean slate.

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AMSOIL Diesel 5W-40 Meets Ford WSS-M2C171E Spec

AMSOIL Synthetic 5W-40 API CJ-4 Diesel Oil

AMSOIL Synthetic 5W-40 Diesel Oil now meets the Ford WSS-M2C171E motor oil specification.

AMSOIL Premium Diesel Synthetic 5W-40 Engine Oil  now carries the Ford WSS-M2C171E diesel oil specification. This spec signifies that a motor oil is suitable for Ford’s PowerStroke 7.3, 6.0 and 6.4 litre engines.

Your guess is as good as ours as to what factors are required to reach this specification. Many automakers offer up their own ambiguous motor oil specs, but for domestic vehicles, the API specifications are predominantly recognized. In the case of AMSOIL Synthetic Diesel 5w-40, it is API CJ-4 licensed and that’s all that most modern diesel owners truly watch for.

This AMSOIL Diesel 5W-40 is applicable for year-round use in the vast majority of diesel applications. It offers a -51°F cold pour point for winter use and low volatility for summer use. It also provides potent wear protection and improved fuel economy. Contact us using the form on your right for a wholesale synthetic oil price list.

 

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