7 best oils for boat engines

Top oils for boat engines

Nomination	a place	Name of product	price
The best oils for two-stroke outboard motors	1	Motul Outboard Synth 2T	1 600 ₽
	2	LIQUI MOLY Marine 2T (5 L)	3 018 ₽
	3	Yamalube 2-M TC-W3 RL Super 2-Stroke	590 ₽
	4	PATRIOT Super Active 2T	323 ₽
The best oils for four-stroke outboard motors	1	MOTUL OUTBOARD TECH 4T 10W30	12 691 ₽
	2	MOTUL SUZUKI MARINE 4T SAE 10W40	680 ₽
	3	QUICKSILVER 4-STROKE MARINE 10W-30	2 620 ₽

The best oils for two-stroke outboard motors

Motul Outboard Synth 2T

Rating: 4.9

Product development of the French company Motul, in which special attention was paid to ensuring the maximum environmental friendliness available for two-stroke engines. Outboard Synth 2T is a pure ester-based synthetics with a complex of detergent and restorative additives with a low surface-active effect. Actually, in order to silence environmentalists, manufacturers have brought the composition to a rather rigid framework prescribed by the international quality and safety certificate TC-W3.

The obvious advantage of this synthetic composition is the ability to perform its functions when using fuel blend in proportions of 1: 100 (1 portion of oil to 100 portions of gasoline). And, if necessary (in the case of high power motors), work on 1:50 mixtures. The exhaust accompanying combustion is distinguished by low opacity, which indicates the complete combustion of oil in the working chamber. Even the composition itself, even when oil is discharged (which is typical of old outboard engines), does not harm the environment very much - it is 85% biodegradable. As a result, owners of boats with two-stroke engines have the opportunity to purchase, if not the cheapest, but very high-quality oil, the benefit is that there is plenty of it on the domestic market.

LIQUI MOLY Marine 2T (5 L)

Rating: 4.8

High-quality German product of semi-synthetic type, caught in the rating due to applicability for lubrication and cooling of high-speed and old two-stroke engines. Despite the truncated complex of filler elements, it takes its own due to the extremely thorough cleaning of the oil base, which contains a minimum of impurity fractions and has a homogeneous structure. It is authentically known that the full freezing temperature of LIQUI MOLY Marine 2T is -39 degrees Celsius - this is the best result in a segment that looks even very redundant.

Due to the stability of the oil film and a large number of neutralizers, this composition perfectly fights against the ingress of foreign components into the engine, such as salt water, condensate, acid-containing gases and other negative environmental factors. It is also worth noting the outstanding washing abilities, cumulative with negligible formation of soot and exhaust smoke. Perhaps the only negative point in LIQUI MOLY Marine 2T is the high price, which is leveled during the use of oil due to the large working life.

Yamalube 2-M TC-W3 RL Super 2-Stroke

Rating: 4.8

Engine oil from the company Yamaha, the "golden" age of which is gradually leaving due to the obsolescence of the composition. Yamalube 2-M TC-W3 RL Super 2-Stroke is a typical “mineral water” with increased consumption and good protective properties, which is not prone to soot and gives minimal smoke. Despite the low acquisition cost, it gives costs comparable to the acquisition of real synthetics. This is due primarily to the need for increased consumption for the formation of the fuel mixture: despite the assurances of manufacturers that the 1: 100 ratio will be quite enough, users note that the engine is not very stable even at low revs. In this regard, in practice, the mixture can reach a ratio of 1:50 or 1:25, depending on the power of the unit and the number of working turns.

What really pleases consumers in the Yamalube 2-M TC-W3 RL Super 2-Stroke is the expiration date. According to their assurances, the oil does an excellent job with checking the time, without losing its properties from prolonged languishing in the crankcase or canister. Most often, the uneven operation of the outboard engine is associated with the deterioration of the state of gasoline, whereas the least claims are made to the oil.

PATRIOT Super Active 2T

Rating: 4.7

Fourth place in the ranking goes to semi-synthetics from the Chinese company Patriot, the main feature of which is expressed in a low price. The same feature causes a high demand for the composition in the network of retail stores, mainly among those whose experience in using outboard motors has more than a dozen years. Comically comparing Super Active 2T with autolom (mainly for the cost), users note the good quality of the oil in the engine cleanliness component after use. Not the most technologically advanced formula with a small amount of additives provides low soot, but it is very smoky, which is why manufacturers often receive complaints from environmentalists.

According to experts, the key advantage of the PATRIOT Super Active 2T is a high degree of versatility: the composition can be poured not only into boat motors, but also into two-stroke engines of snowmobiles, motorcycles and other garden tools, in which it works surprisingly smoothly. These users have to taste, and therefore the shelves of stores with this oil are emptied pretty quickly.

The best oils for four-stroke outboard motors

MOTUL OUTBOARD TECH 4T 10W30

Rating: 4.9

Another representative of the company Motul, designed as a universal composition for boat motors aft and suspension type. At the heart of its creation lies the unique Technosynthese technology, which takes into account the subtleties of work and the design of absolutely all four-tactics represented on the modern market. Proof of this are the internal tests of the developers, as well as independent experts' experiments, which showed surprising results in terms of the preservation of the work resource. The second important advantage of OUTBOARD TECH 4T 10W30 was the high resistance of the oil film to rupture under the influence of high temperatures. At 40 degrees Celsius, the viscosity of semi-synthetics is 77.8 mm²/ s, while at 100 degrees the indicator does not fall below 10 mm²/with.

The pour point of the oil is -33 degrees Celsius, and therefore you should not worry about the deterioration of engine performance (except snowmobiles, but it’s not advisable to use them at this temperature). Ultimately, consumers get not the most expensive semi-synthetics, which has the parameters of high-grade synthetic oil, the working conditions of which are more than enough for the season haulage.

MOTUL SUZUKI MARINE 4T SAE 10W40

Rating: 4.8

One of the clearest examples of semi-synthetic oil for outboard engines, developed in close collaboration with the Japanese concern Suzuki. Accordingly, it works ideally with products of this brand, but, as experts say, not bad manifests itself in other models of four-stroke engines. There are no restrictions on the use of French manufacturers.

From a technical point of view, Suzuki Marine 4T SAE 10W40 is the same product from the standard Motul series of oils with slightly improved combustion efficiency, environmental friendliness and cost effectiveness. For all this, there is a special package of filler elements, designed to eliminate the characteristic vulnerabilities of the Suzuki engines. As for the rest, neither by viscosity level, nor by holding the oil film, much less is it felt in the component of the pour point. All this unambiguously pushes the opinion that behind a specialized label lies more subtle commercial course, rather than a breakthrough development for the products of a particular manufacturer.

QUICKSILVER 4-STROKE MARINE 10W-30

Rating: 4.8

American-made mineral engine oil, which was recognized first among the consumers of its country, and after having conquered the already saturated segment of the Russian market. The beauty of Quicksilver 4-Stroke Marine 10W-30 is that the composition has a high viscosity, but at the same time it splashes quite easily around the chamber through a immersion ring on the crankshaft. Moreover, spraying is ensured even at low revolutions of rotation, which makes the oil especially valuable when used in order for outdated engines with a high percentage of the developed resource.

According to experts, Quicksilver 4-Stroke Marine 10W-30 perfectly combines with boat motors from Mercury, taking into account every nuance of their work and trying to influence it from the outside. However, all this is purely advisory in nature. The very same oil is quite cheap, which causes high demand among consumers. But, another kind of problem comes to the surface: due to the current situation in the world and the limited nature of the product, it is not possible to find it on the market. The exceptions are dealerships and stores official distributors of the company.

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Attention! This rating is subjective, is not advertising and does not serve as a guide to the purchase. Before buying, you should consult with a specialist.