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We recently reviewed Honda GN4 10W-30 and loved it for a number of different reasons. Honda has made a remarkable product in a sense that the GN4 suits a variety of engines. Although the title says that it’s suitable for Dirt Bikes within the 250 – 450CC league, you can use the oil for generators and other 2 stroke engines where the oil rating is applicable.
Therefore, if you plan on using this engine oil for other machines, be mindful of the rating and the 10W-30 limit. The rest will be fine as long as you are mindful of general maintenance factor etc.
In A Hurry – Check Availability Here
- HONDA 08C35-A141M01 OIL, ENG (GN4 10W40)
- Honda set the standard for motorcycle oil when it introduced GN4 way back in 1975.
Honda GN4 10W-30 Vs. Castrol 10W40 – Which One Is Better?
A few days ago, we received an inquiry from a user. It stated that he had Castrol 10W40 and Honda GN4 10W-30 alongside two very powerful motorcycles – i.e. the Triumph and the CRF250L. The problem was that he wasn’t unsure of choosing between Castrol and Honda oil because both of them had relatively the same rating. He wanted to know if he could just chuck one brand and keep the other MC oil in his garage from long term use perspective.
Hmmm… decisions… decisions…
We recommend Honda GN4 10W-30 because it has the optimal rating. The viscosity is ideal for helping the engine operate at a long range of temperature levels. Castrol 10W40 is good, but if you are using a brand new motorcycle with an engine that’s just about priming to break in, you don’t want to take any risks. Therefore, use the GN4 by Honda, and once you are past a couple of hundred miles, try and see if Castrol is well worth it. Otherwise, you can fall back to Honda GN4 10W-30 once again.
- Ideal for Honda Goldwing Series Bikes
- Certified 16020 NLZ-900 Engine Oil
- Officially Endorsed by Honda for Honda Co. motorcycles
- Compatible with 2 Stroke Engines, Generators and other motorbikes
- 10w30 Rating makes the oil perfect for operating under variety of temperature settings
How Often Should You Change Your Motorcycle Engine Oil?
Since this write-up is written from a hands on perspective, we wanted to offer multiple solutions to people who are skeptic about using the Honda GN4 10W-30 for the first time. Since it is “oil”, there shouldn’t be a lot of confusion associated with it – for as long as you have read your bike’s manual and are aware of the engine rating.
In that order, you could use any other engine oil for general machinery IF and ONLY IF the oil’s rating matches that of the engine. We know that many companies recommend their own brand of engine oil because of sales related reasons, but you could try other brands too.
For instance, if you have a CRF450R series motorcycle, you should use Honda GN4 10W-30 in combination with the 80W or 85W transmission oil. That is of course, the transmission oil goes for the gear. Don’t mix it up with engine oil ever. The viscosity different will mess things up during the first few runs.
On the subject of how often you should change your motorcycle oil, there are two different use case scenarios. If you are an average rider, and by that we are assuming you don’t take part in Professional Street or track racing, you are good to go. Ride the motorbike for max number of miles until an oil change interval is due.
In an alternate case, if you are a racer, change your motorcycle engine oil after cumulative 15 hours of use. If you are racing, then change the engine oil after every 2nd race. Since motorcycle engines are small and more demanding as compared to car engines, they require frequent changes for as long as you are a participant in professional track races.
Even the best oils don’t last long in race bikes. Therefore, it is not worth risking saving the “money” for an extra few miles. Your safety and motorcycle are more important. Don’t you think so? While you are at it, make sure you are changing your motorcycle oil filter too. There are a great number of bundled deals available at Amazon where you could buy Honda GN4 10W-30 and a recommended engine oil filter in the recommendations section.
If you are not strapped for cash, you can possibly go for a one time purchase of Honda GN4 10W-30, Honda transmission oil and a high quality Honda endorsed filter. As a bundled deal, the collective price at the time of checkout will be slightly less if you were to buy the same items from different online vendors at the same time.
Honda GN4 10W-30 Frequently Asked Questions:
- The photo of the GN4 Honda Engine Oil shows it has 10W30 but the actual oil has 10w40 rating. Which one is the correct rating?
In some cases, Honda has used outdated stock product photos. If you are unsure of the rating, take a look at customer reviews at the online retailer website. They’ll give accurate insight on the actual rating of the engine oil.
Can this oil be used for 2016 Model Honda PCX 150 CC Motorcycle?
If your Honda PCX 150 user manual states that the engine is compatible with Honda GN4 10W-30, there won’t be any issues or whatsoever.
Can I use the Honda GN4 10W-30 oil for 1000 CC motorcycles?
1000CC bikes are in a higher league with very demanding engines. Be extremely cautious about whatever you are pouring into the engine. The best way of confirming the compatibility rating is by consulting with official Honda retailers or the Honda motorcycle manual.
Is this oil for 4 stroke engines?
Yes, it is. However, you can use it with other engines too if you know what you are doing.
Given its general use and all-roundedness, Honda’s GN4 10W-30 is a genuinely interesting product. It has not received that many complaints as compared to other engine oils from different competitor brands. On that note, we recommend this oil to seasoned motorcycle owners and veterans alike.
Good luck out there!
Last update on 2020-10-05 / Affiliate links / Images from Amazon Product Advertising API