9 Best Oil For Flat Tappet Cam Engine 2023

The camshaft is the heart of an engine, one of the most important components in your car. The need for reliable oil is imperative in keeping a good level of performance and smooth running of your vehicle.

These days, consumers look for more advanced oil than ever before as it provides improved protection against wear and tears to engines.

Here’s a guide on what to look for when buying the best oil for a flat tappet cam engine.

Quick Comparison

Best Flat Tappet Cam Engine Oil Reviews

1. Castrol GTX 20W-50 Cam Engine Oil

Castrol GTX introduced a double-action formula to remove old sludge from your flat tappet cam engine. It provides superior sludge protection to enhance your engine life.

You will be glad to know this great oil is capable of fighting against sludge for over 50 years. Also, it provides the highest protection against viscosity & thermal breakdown.

As a result, you will save your maintenance cost & traveling hassle. Moreover, it comes with innovative Trishield technology to deliver maximum deposit protection.

You must know flat-tappet cams need an accurate protestant for the engine. And this antioxidant additive feature of this Oil makes it a great protestant.

Moreover, It comes with phosphorus replacement technology that helps to reduce the phosphorus level. Also, replace it with an excellent additive.

As a result, you can preserve your emission system. Also, it maintains superior wear protection to protect the flat tappet engine. That’s why it is called the perfect Oil for a flat tappet cam engine.

Besides, Castrol GTX has a built-in advanced formula to enhance mileage. This premium oil is a great performance booster & makes your vehicle long-lasting.

2. Amsoil 10W-40 Stroke Synthetic Cam Oil

Amsoil premium oil works as great protection for flat tappet engines, transmissions & gear. Moreover, it comes with a great formula to meet high-tech air & 4 stroke scooters requirements.

Well, this premium formulated Oil offers excellent wear protection & friction reduction for improving equipment life. Also, it enhances cooler operating temperatures.

Besides, it comes with unique friction modifier-free technology to deliver wet-clutch compatibility & hassle-free clutch operation. Another great advantage of this Oil is its premium anti-corrosion additive package. That ensures superior protection for a long time.

Also, that is a lifesaver for flat tappet tire engines. Most of the vehicle gets damaged due to inactivity. But guess what this magical Oil ensures an extended period of internal rust & corrosion protection. You can safely store your vehicle without the risk of getting rust.

It is popular for flat tappet engines because of its heat protective capability & withstands the stress of high rpm operation. As a result, you will enjoy outstanding wear protection.

Even in high heat or extremely cold environments where ordinary oil breakdown but this fighting king oil won’t break. It guards your engine life & compression power. If you aim for the best flat tappet tire engine protection then this one is a lucrative choice.

3. Valvoline 20w50 Flat Tappet Cam Engine Oil

It is one of the best selling oil in the market. Valvoline conventional oil is specially formulated for pro-level protection in classic & high-performance vehicles, including flat tappet & performance cam engines.

To protect the flat tappet cam engine it introduces a high zinc & phosphorus formula for delivering maximum anti-wear protection. That’s the reason Valvoline oil is one of the best choices for flat tappet vehicles.

It also comes with a built-in special horsepower booster formula to improve the performance of your vehicle. Also, it brings innovative technology to reduce friction & increase power. It is currently the number one engine oil in all types of racing or modern vehicles.

You can make a smooth ride on dirt or paved surfaces if you use this great lubricant.

It ensures even flow in cold temperatures. Also, this Oil protects high-temperature deposits. Moreover, this Oil is a long-lasting oil that needs to change after 3000miles. That also saves you from frequent Oil changing costs.

4. Pennzoil SAE 20W-50 Synthetic Motor Oil

Pennzoil is a great choice for cars, trucks, vans & sports vehicles. In short, it performs best for flat tappet cam engines. It brings an advanced formula to meet the requirements of the standard cam engine. Also, this Oil maintains the lubricant international standard.

The best part is this Oil can clean up to 40% sludge on the engine on the first try. As a result, you can enhance your engine life cycle.

It is a great remover for sludge & deposits on engine surfaces. Moreover, it also maintains high-temperature oxidation & deposits.

Pennzoil motor oil brings conventional formulas to enhance engine performance. It not only protects dirt, contaminations but also cleans out sludge to ensure optimal engine protection.

It comes with a special formula to deliver maximum protection against the harmful impacts of vehicle inactivity or low-temperature riding.

It is guaranteed you won’t face oil breakdown in high temperatures with this Oil.

5. Shell Rotella SAE 5W-40 Cam Engine Oil

Shell Rotella is coming with innovative Triple plus Technology with fully synthetic oil. That delivers maximum wear & deposit protection.

Not only this but also it brings extra additives to protect the engine & enhance its durability.

Well, this additive has the power to protect dirt, contaminants, or other garbage. 

Moreover, it controls oil breaks down at low temperatures. This full synthetic premier Oil also enhances fuel economy.

Guess what this great Oil can deliver 1.5% extra fuel performance.

Besides, it is long-lasting Oil that improves engine performance & durability. Also, it reduces viscosity loss & ensures perfect engine oil pressure.

It is suitable for any diesel-powered vehicle. Even in high temperatures, this synthetic Oil performs excellently.

You never face oil break down with this amazing Oil. Last but not least, it is cheaper lubricant oil that provides some excellent benefits.

It is guaranteed you won’t find such amazing features at a low cost in any other oil. Obviously, it is the best value product.

6. Liqui Moly 4T Street 20W-50 Engine Oil

Liqui moly is a heavy-duty motor oil that delivers excellent performance. The best part of this great Oil is its extraordinary engine protection power in any environment.

That is the reason why people keep it as the first choice for a flat tappet cam engine.

This Oil prevents wear & other critical components from your cam’s engine.

The exclusive wear protection & optimal lubricant stability makes this Oil is a must-have product for the cam engine.

It also maintains minimum evaluation loss & reduces oil consumption.

Also, it ensures noise reduction & gentle gear shifting. Besides, it is perfect for wet clutches.

Liqui moly also comes with an advanced cleaning formula to enhance your cam engine life. It also prevents sludge, contaminated & harmful properties.

In short, to keep your flat tappet cam engine it works as a shield. There is no chance of oil breakdown even at high temperatures.

7. Mobil 1 Flat Tappet 10W-40 Engine Oil

Mobil 1 is one of the best deals for your old vehicle as well as a modern one. You can enjoy the excellent performance of your old flat tappet cam engine with this great Oil.

It not only enhances engine life but also improves mileage. It comes with a jug that contains a semi-transparent stripe to inform you how much Oil is left.

This fully synthetic oil is suitable for people who drive roughly. It requires low consumption between oil switching.

Besides, it delivers excellent wear protection that is a must for a flat tappet cam engine.

Also, it brings cleaning features & works as a performance booster of your can engine.

Moreover, it decreases sludge, contamination & deposits to increase engine durability.

It helps to avoid engine leaks. A flat tappet cam engine is incomplete without Mobil 1. It is an integral part of the engine’s safety & improvement.

8. Royal Purple 20W-50 Synthetic Motor Oil

Royal Purple 20W-50 is specially formulated to meet the requirements of flat tappet cam engines & stressed engines.

It is suitable for both air-cooled & liquid-cooled 4 cycle engines.

Also, this Oil is compatible to apply with the bike through a wet clutch. It comes with improving film strength compared to any ordinary oil.

This great Oil introduces additive technology. It provides sheer stability & oxidation resistance.

That improves performance & ensures efficient protection. This great Oil has the power to reduce engine temperature without foaming.

The Oil has stability & oxidation protection features to protect engines from excess heat.

That ensures low friction & smooth performance. As a result, you will increase both the engine power & durability.

It is specially formulated to protect against unwanted engine wear & tear. This Oil works great for cleaning flat tappet cam engines.

Also, it improves fuel consumption. This great Oil ensures long oil drain intervals. That means you can enjoy a hassle-free long time riding experience.

9. Lucas 20W-50 Flat Tappet Cam Engine Oil

Lucas 20W-50 is an excellent oil to ensure consistent viscosity. That is essential for a flat tappet cam engine.

It brings a unique additive package that includes lubricity agents & anti-seize agents.

As a result, it crucially protects heavy metal or any other first. It keeps the engine clean & safe.

This synthetic oil is high mileage oil that improves performance. Even it can protect wear at high temperatures. Also, it makes the shifting gear smooth & quiet.

The best part of this Oil is having great cold temperature features. That is suitable with both conventional & synthetic engine oils.

This Oil is ideal for versatile bikes, especially flat tappet cam engines.

It is one of the rare oils that are able to meet Japanese JASO-MA2 standards. That indicates its premium quality & high-performance guarantee.

Minor differences in oil brands can transform great changes. You need to apply the high-performing Lucas oil to generate consistent performance.

Flat Tappet Cam Engine Oil Buying Guide

Quality motor oil is a must for the safety of your engine. But it is important to choose the right Oil with a standard additive package & viscosity.

Especially flat tappet cam engines highly need anti-wear or antioxidant additives to protect the engine.

Before choosing any motor oil, you need to check some important properties to derive the best performance.

Dive into the buying guide to know those essential ingredients.

Best types of Oil

Nowadays motor oil has multiple types & options. Among them, conventional motor oil ensures the best lubricating performance & consistent flow even at cold temperatures.

This type of oil is to protect viscosity breakdown, oxidation & sludge. That is highly essential for a flat tappet engine.

It is a worthy oil for your cam engine. You can protect your engine & also boost up performance with these great lubricants.

Also, it is an affordable option than full synthetic oil. The most popular conventional 5W-20 & 5W-30 multi-viscosity oil contain high-performance booster & additive features.

It meets the standard API requirements including multi-viscosity rating, wear protection, cleaning & more.

Check Standard

You can check the service rating, viscosity & fuel properties of your Oil from the API.

The quality Oil that meets API requirements is marked with Starburst on the label of the jar. It is highly important while choosing Oil for your cam engine.

Other engine oil

Some oil brings an advanced formula to minimize friction. That improves fuel economy.

Some bring the exclusive formula to enhance oil drain intervals periods. Besides, some brands bring special technology to meet the needs of a high mileage engine.

Whereas some brand oil comes with a premium protection formula with ZDDP for flat tappet cam engines.

That provides maximum anti-wear protection, superior performance & scuffing properties.

While you are buying motor oil for a flat tappet cam engine, don’t forget to check these vital features & ingredients. It will help you to make your purchase value-worthy.

On the other hand, some brands bring special Oil for marine engines, air-cooled engines, or other types of engines.

But the most important factor for any engine including a flat tappet cam engine is no detergent formula with additives.

That controls oil breakdown & ensures maximum anti-wear protection. As a result, you can enhance your flat tappet cam engine life & get rid of scuffs.

ZDDP

For flat tappet cam engines, the ZDDP reduction additive is a must-have feature in your motor oil.

It is a crucial anti-wear additive that decreases ZDDP to enhance engine life.

Generally, motor oil comes with nearly 1500PPM of ZDDP. Currently, some of the best Oil is capable of decreasing it to around 800 PPM.

That is really amazing for your engine’s life & improves its performance. It is a key feature to check before buying any oil for a flat tappet cam engine.

It is the key to indicating the level of anti-wear protection of your cam engines.

Many popular brands bring ZDDP additives with conventional or synthetic Oil to remove issues. Also, it helps to enhance drain intervals time.

Well, the high-level additive is capable of protecting high cam lifters to improve performance. Also, It enhances cam engine durability.

Viscosity

Each type of motor oil contains a viscosity number. The first digit of the number indicates the Oil’s flow at low temperature & the second one stands for nature in high temperatures.

Most of the flat tappet cam engines come with multi-viscosity such as 5W-20 or 5W-40. It’s essential to follow the viscosity recommendations according to your engine types.

Oil Density

Generally, thin Oil enhances fuel consumption. But thin Oil has not enough power to deliver film strength at high temperatures. As a result, it won’t protect the bearings or engine efficiently.

So don’t run for excessive thinner oil. It is only good for balancing oil pressure to improve performance. Medium-density density oil is a good choice.

Well, buying the right motor oil based on your engine type is a must to protect your engine. It will enhance the durability & performance of your engine. Follow this guide to buying quality Oil to protect your cam engines.

Flat Tappet Cam Engine Oil(FAQs)

Final Thought

The right Oil basically depends on your engine type & also varies depending on your job. For example, if you use your vehicle regularly, you don’t need the Oil that comes with an inactive engine protection formula.

We bring a variety of ranges lists of the best Oil for flat tappet cam engine. As a result, you can choose the right one based on your requirements & budget. The right Oil will not only protect your cam engine but also ensure a smooth ride.