Best Oil Additive For Older Engines in 2023: Top Brands Review

Sometimes it might be quite difficult to find the best oil additive for older engines. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this oil additive for older engines buying guide.

Our Best Picks:

#	Preview	Product
1		ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 2 Bottles	Check Price
2		Rislone 4405 Engine Oil Supplement Concentrate with Zinc Treatment - 11 oz, Yellow	Check Price
3		Lucas Oil 10063 Engine Break-In Oil Additive - 16 oz., Multi-Colored (LUC10063)	Check Price
4		ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 10 Bottle Pkg	Check Price
5		REV X ZDDP Oil Additive - Zinc & Phosphorus (2 Pack)	Check Price
6		Bardahl 21208-CS B2 Oil Treatment Additive - Motor Oil Enhancement to Prevent Oil Burning and...	Check Price
7		ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 5 Bottle Pkg	Check Price
8		REV-X ZDDP Oil Additive - Zinc & Phosphorus (5 Pack)	Check Price
9		REV X ZDDP Oil Additive - Zinc & Phosphorus	Check Price
10		Liqui Moly 2037 Pro-Line Engine Flush	Check Price

10 Top Oil Additive For Older Engines Reviews:

Bestseller No. 1

ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 2 Bottles

• PROTECT YOUR ENGINE - Older cars with flat tapped lifters-cam need the added zinc for protection
• EASY TO USE - Simply empty entire 4oz contents of the bottle to a 4 to 6 quart oil change.
• PREVENT METAL ON METAL CONTACT - ZDDPlus alters characteristics to prevent metal on metal contact
• FOR USE ON PRE 1989 AND HIGH PERFORMANCE ENGINES
• COMPATIBLE WITH SYNTHETIC AND CONVENTIONAL MOTOR OILS

Check Price

SaleBestseller No. 2

Rislone 4405 Engine Oil Supplement Concentrate with Zinc Treatment - 11 oz, Yellow

• Prevents Camshaft Wear
• Reduces Piston Scuffing
• Increases Engine Life
• Makes Newer Oils Work In Older Engines

Check Price

SaleBestseller No. 3

Lucas Oil 10063 Engine Break-In Oil Additive - 16 oz., Multi-Colored (LUC10063)

• Affordable Solutions
• Not designed for passenger car use
• Exclusive blend of extreme pressure additives
• Excellent for flat tappet camshafts or as an additive

Check Price

Bestseller No. 4

ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 10 Bottle Pkg

• Prevents premature cam and valve train failure
• Extreme pressure protection
• For use on pre-1989 engines
• Use in high-performance and classic cars

Check Price

Bestseller No. 5

REV X ZDDP Oil Additive - Zinc & Phosphorus (2 Pack)

• 1 Bottle Treats 6 qts. of oil - The most concentrated form of ZINC (ZDDP) Additive available. 3000-3200 parts per million when blended with 6 quarts of oil.
• Provides Maximum Protection For Engine Break In.
• Protects Flat Tappet Camshafts (Hydraulic or Solid).
• Provides increased lubrication of Roller Lifter Bearings (Hydraulic or Solid).
• Provides Maximum Metal To Metal Protection.

Check Price

Bestseller No. 6

Bardahl 21208-CS B2 Oil Treatment Additive - Motor Oil Enhancement to Prevent Oil Burning and Restore Older, High Mileage Engines - 12 fl. oz. (Pack of 12)

• Effectively stops oil burning and protects against engine wear
• Restores compression and engine power to improve performance
• Original formula fortified with Zinc
• Safe to use in gas or diesel engines and will not harm plastic or Teflon components
• Compatible with all types and grades of motor oil, including synthetics

Check Price

Bestseller No. 7

ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 5 Bottle Pkg

• PROTECT YOUR ENGINE - Older cars with flat tapped lifters-cam need the added zinc for protection
• EASY TO USE - Simply empty entire 4oz contents of the bottle to a 4 to 6 quart oil change.
• PREVENT METAL ON METAL CONTACT - ZDDPlus alters characteristics to prevent metal on metal contact
• FOR USE ON PRE 1989 AND HIGH PERFORMANCE ENGINES
• COMPATIBLE WITH SYNTHETIC AND CONVENTIONAL MOTOR OILS

Check Price

Bestseller No. 8

REV-X ZDDP Oil Additive - Zinc & Phosphorus (5 Pack)

• Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
• Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
• Mandatory for all flat tappet engines.
• Works in both synthetic and standard mineral-based oils.
• Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 – 3200 parts per million (ppm).

Check Price

SaleBestseller No. 9

REV X ZDDP Oil Additive - Zinc & Phosphorus

• Creates an anti-wear layer at friction points to prevent metal-to-metal contact and eliminate wear.
• Engine break-in where the new camshaft and lifters need extra protection, and ZDDP is perfect for that.
• Mandatory for all flat tappet engines.
• Works in both synthetic and standard mineral-based oils.
• Two fluid ounces mixed with 6 quarts of oil create a ratio of 3000 – 3200 parts per million (ppm).

Check Price

Bestseller No. 10

Liqui Moly 2037 Pro-Line Engine Flush

• Easy way to clean and flush the oil systems of gasoline and diesel engines
• Gentle and rapid cleaning
• Neutral to seals and other materials installed in the engine
• Compatible with catalytic converters
• Simple to use

Check Price

Last update on 2023-03-21 / Affiliate links / Images from Amazon Product Advertising API

How to find the best oil additive for older engines?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best oil additive for older engines for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good oil additive for older engines recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

• What features does the oil additive for older engines need to have to be perfect for my needs?
• What is my budget?
• Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for oil additive for older engines to find what you’re looking for:

Brand

In some cases, the brand of oil additive for older engines is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.

Features

The features in any given oil additive for older engines are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.

Reviews

Customer reviews about oil additive for older engines are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.

Quality

Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare oil additive for older engines quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.

Warranty

Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.

Conclusion

The quest to find the best oil additive for older engines can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.