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	<title>Maintenance Archives - Professional Motor Mechanic</title>
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		<title>The role oils play in preserving ageing engines</title>
		<link>https://pmmonline.co.uk/article/the-role-oils-play-in-preserving-ageing-engines/</link>
		
		<dc:creator><![CDATA[Joe Clarke]]></dc:creator>
		<pubDate>Fri, 24 Apr 2026 18:21:39 +0000</pubDate>
				<category><![CDATA[Article]]></category>
		<category><![CDATA[Classic car]]></category>
		<category><![CDATA[Engine Management]]></category>
		<category><![CDATA[Engine oils]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Oils]]></category>
		<category><![CDATA[Witham Group]]></category>
		<guid isPermaLink="false">https://pmmonline.co.uk/?p=44852</guid>

					<description><![CDATA[<p><img width="300" height="200" src="https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-300x200.jpg" class="attachment-medium size-medium wp-post-image" alt="The role oils play in preserving ageing engines" decoding="async" fetchpriority="high" srcset="https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-300x200.jpg 300w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-768x512.jpg 768w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-274x183.jpg 274w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-80x54.jpg 80w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-130x87.jpg 130w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-359x240.jpg 359w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-85x57.jpg 85w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-546x365.jpg 546w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-165x109.jpg 165w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-347x233.jpg 347w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-112x75.jpg 112w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-179x120.jpg 179w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-170x113.jpg 170w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-81x55.jpg 81w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444-765x510.jpg 765w, https://pmmonline.co.uk/wp-content/uploads/2026/04/AdobeStock_177244444.jpg 800w" sizes="(max-width: 300px) 100vw, 300px" /></p>
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<p>For any classic car garage, the engine oil on the shelf is as much a piece of preservation equipment as a spanner or torque wrench. According to the latest annual report from the Federation of British Historic Vehicle Clubs, the UK’s historic vehicle movement continues to thrive, supporting a substantial slice of the economy and representing a ...</p>
<p>The post <a href="https://pmmonline.co.uk/article/the-role-oils-play-in-preserving-ageing-engines/">The role oils play in preserving ageing engines</a> appeared first on <a href="https://pmmonline.co.uk">Professional Motor Mechanic</a>.</p>
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		<title>Replacing the AC system&#8217;s compressor</title>
		<link>https://pmmonline.co.uk/article/replacing-the-ac-systems-compressor/</link>
		
		<dc:creator><![CDATA[Joe Clarke]]></dc:creator>
		<pubDate>Tue, 21 Apr 2026 18:09:14 +0000</pubDate>
				<category><![CDATA[Article]]></category>
		<category><![CDATA[AC & Thermal Management]]></category>
		<category><![CDATA[Air Conditioning]]></category>
		<category><![CDATA[Mahle]]></category>
		<category><![CDATA[Maintenance]]></category>
		<category><![CDATA[Thermal Parts]]></category>
		<guid isPermaLink="false">https://pmmonline.co.uk/?p=44840</guid>

					<description><![CDATA[<p><img width="300" height="200" src="https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-300x200.jpg" class="attachment-medium size-medium wp-post-image" alt="Replacing the AC system&#039;s compressor" decoding="async" srcset="https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-300x200.jpg 300w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-1024x683.jpg 1024w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-768x512.jpg 768w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-1536x1024.jpg 1536w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-2048x1365.jpg 2048w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-274x183.jpg 274w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-80x54.jpg 80w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-130x87.jpg 130w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-359x240.jpg 359w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-85x57.jpg 85w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-546x365.jpg 546w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-165x109.jpg 165w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-347x233.jpg 347w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-112x75.jpg 112w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-179x120.jpg 179w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-170x113.jpg 170w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-81x55.jpg 81w, https://pmmonline.co.uk/wp-content/uploads/2026/04/Compressor-installation_white_t-shirt-765x510.jpg 765w" sizes="(max-width: 300px) 100vw, 300px" /></p>
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<p>Is replacing the air conditioning system’s compressor a simple in-out job? No, it requires care and attention and that way, argues Mahle, needless returns can be minimised.  Few components in the air conditioning system are as critical, or as costly, as the compressor. Yet in the aftermarket, compressors are also one of the most commonly returned parts. ...</p>
<p>The post <a href="https://pmmonline.co.uk/article/replacing-the-ac-systems-compressor/">Replacing the AC system&#8217;s compressor</a> appeared first on <a href="https://pmmonline.co.uk">Professional Motor Mechanic</a>.</p>
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