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	<title>Lubricant &#8211; 49 North Lubricants</title>
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	<title>Lubricant &#8211; 49 North Lubricants</title>
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		<title>What&#8217;s The Difference Between GL4 and GL5 Gear Oil?</title>
		<link>https://www.49northlubricants.com/The-Difference-Between-GL4-and-GL5-Gear-Oil</link>
				<pubDate>Tue, 20 May 2025 15:34:10 +0000</pubDate>
		<dc:creator><![CDATA[Brittany Thackray]]></dc:creator>
				<category><![CDATA[Blog]]></category>
		<category><![CDATA[Gear Oil]]></category>
		<category><![CDATA[Industrial Gear Oil]]></category>
		<category><![CDATA[Automotive Gear Oil]]></category>
		<category><![CDATA[GL5 Gear Oil]]></category>
		<category><![CDATA[GL4 Gear Oil]]></category>
		<category><![CDATA[GL5 Oil]]></category>
		<category><![CDATA[GL4 Oil]]></category>
		<category><![CDATA[Synthetic Oil]]></category>
		<category><![CDATA[Lubricant]]></category>
		<category><![CDATA[Industrial Lubricant]]></category>
		<category><![CDATA[Automotive lubricant]]></category>

		<guid isPermaLink="false">https://www.49northlubricants.com/?p=36776</guid>
				<description><![CDATA[<p>49 North Lubricants sells two types of Gear Oil, so what&#8217;s The Difference Between GL4 and GL5 Gear Oil? GL4 Is An&#8230;</p>
<p>The post <a rel="nofollow" href="https://www.49northlubricants.com/The-Difference-Between-GL4-and-GL5-Gear-Oil">What&#8217;s The Difference Between GL4 and GL5 Gear Oil?</a> appeared first on <a rel="nofollow" href="https://www.49northlubricants.com">49 North Lubricants</a>.</p>
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								<content:encoded><![CDATA[<a href="https://www.49northlubricants.com/blog-template-2/blog-template-01/" rel="attachment wp-att-36779" class="image-link"><img class="size-full wp-image-36779 aligncenter" src="https://www.49northlubricants.com/wp-content/uploads/2025/05/Blog-Template-01.png" alt="" width="512" height="344" srcset="https://www.49northlubricants.com/wp-content/uploads/2025/05/Blog-Template-01.png 512w, https://www.49northlubricants.com/wp-content/uploads/2025/05/Blog-Template-01-300x202.png 300w" sizes="(max-width: 512px) 100vw, 512px" /></a>

49 North Lubricants sells <em>two</em> types of Gear Oil, so what&#8217;s The Difference Between GL4 and GL5 Gear Oil?

<span style="font-size: 18pt; color: #ba0c2f;"><strong>GL4 Is An Industrial Gear Oil Specification</strong></span>

Industrial gear oil is used for gear driven industrial applications, such as conveyors, mills, presses and is meant to protect the gears as they reduce the speed of input shafts and thus increase the torque of their output.

<span style="font-size: 18pt; color: #0b9cb8;"><strong>GL5 Is An Automotive Gear Oil Specification</strong></span>

Automotive gear oil is used for axles and differentials in automotive applications to protect the hypoid gears under high load/ speed. GL5 products have more extreme pressure additives and are designed to protect these heavily loaded gear sets from wear.

GL4 and GL5 gear oil are unique products that are <em>not</em> interchangeable. Always consult your owners manual to determine the type of lubricant you need for your specific application. You can learn more about these specifications <a href="https://www.49northlubricants.com/gear-oil-specifications/">here</a>.

&nbsp;

As always, when in doubt, please call 1.800.463.0354 and speak to our Technical Specialist &#8211; Corey Foy.

&nbsp;
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<td style="width: 50%; height: 300px; text-align: center;"> <a href="https://shop.49northlubricants.com/product/02/31130c4901/49N-Industrial-EP-Gear-Lube-ISO-150-" rel="attachment wp-att-10708">
</a><img class="aligncenter wp-image-10708 size-medium" src="https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-300x300.jpg" alt="" width="300" height="300" srcset="https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-300x300.jpg 300w, https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-150x150.jpg 150w, https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-768x768.jpg 768w, https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-1024x1024.jpg 1024w, https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-848x848.jpg 848w, https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-1140x1140.jpg 1140w, https://www.49northlubricants.com/wp-content/uploads/2020/02/31130-Pail-Current-View-1170x1170.jpg 1170w" sizes="(max-width: 300px) 100vw, 300px" /></td>
<td style="width: 50%; height: 300px; text-align: center;"> <a href="https://shop.49northlubricants.com/product/02/3180cs4915/49N-Premium-Fleet-Synthetic-Gear-Lube-75W90-208L-Drum" rel="attachment wp-att-10704" class="image-link"><img class="aligncenter wp-image-10704 size-medium" src="https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-300x300.jpg" alt="" width="300" height="300" srcset="https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-300x300.jpg 300w, https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-150x150.jpg 150w, https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-768x768.jpg 768w, https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-1024x1024.jpg 1024w, https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-848x848.jpg 848w, https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-1140x1140.jpg 1140w, https://www.49northlubricants.com/wp-content/uploads/2020/02/3180-Pail-Current-View-1170x1170.jpg 1170w" sizes="(max-width: 300px) 100vw, 300px" /></a></td>
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<tr style="height: 24px;">
<td style="width: 50%; text-align: center; height: 24px;"><strong>Industrial EP Gear Lube ISO 150</strong></td>
<td style="width: 50%; height: 24px; text-align: center;"><strong>Premium Fleet Synthetic Gear Lube 75W90</strong></td>
</tr>
<tr style="height: 24px;">
<td style="width: 50%; height: 24px; text-align: center;">49 NORTH® INDUSTRIAL EP GEAR LUBRICANTS are special formula gear lubricants for heavy duty industrial gear sets.</td>
<td style="width: 50%; height: 24px; text-align: center;">49 NORTH® PREMIUM FLEET SYNTHETIC GEAR LUBRICANT is a fully synthetic based gear lubricant that is specially formulated for extended drain and severe service in heavy duty, extreme pressure applications.</td>
</tr>
</tbody>
</table>
&nbsp;

&nbsp;<p>The post <a rel="nofollow" href="https://www.49northlubricants.com/The-Difference-Between-GL4-and-GL5-Gear-Oil">What&#8217;s The Difference Between GL4 and GL5 Gear Oil?</a> appeared first on <a rel="nofollow" href="https://www.49northlubricants.com">49 North Lubricants</a>.</p>
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