<!doctype html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<div class="default-style" style="font-size: 12pt; font-family: helvetica,arial,sans-serif; color: #333333;">
For all of you still using engine oil in your Triumph or MG gearboxes:
</div>
<div class="default-style" style="font-size: 12pt; font-family: helvetica,arial,sans-serif; color: #333333;">
And, by the way, when’s the last time it’s been changed? “Dirt is the enemy of all machinery”
</div>
<div class="default-style" style="font-size: 12pt; font-family: helvetica,arial,sans-serif; color: #333333;">
</div>
<div class="default-style" style="font-size: 12pt; font-family: helvetica,arial,sans-serif; color: #333333;">
Ed Woods
</div>
<div class="default-style" style="font-size: 12pt; font-family: helvetica,arial,sans-serif; color: #333333;">
</div>
<div class="default-style" style="font-size: 12pt; font-family: helvetica,arial,sans-serif; color: #333333;">
</div>
<div class="default-style" style="font-size: 12pt; font-family: helvetica,arial,sans-serif; color: #333333;">
People confuse engine oil weights with gear oil weights. They have > nothing to do with each other. A 75w gear oil has about the same viscosity > {pourability} as 20w engine oil. Back in the days when your cars were new oil technology expecially gear oil was rather crude. 30w engine oil was used because they did not have a gear oil that was thin enough. Light weight gear oils are fairly new. The last 15 years or so. Gear oils are designed for shear stregnth. Meaning they cling to virtical surfaces. Engine oil does not. By using straight weight engine oils you are using ancient technology. It would be the same as putting on rayon/nylon tires, using poor fuel etc. We use 75w/80 gear oil in all but our racing boxes. These use a 75w synthetic oil. One of the boxes, a pre-war jag box had over 30,000 miles of rallies on it before it broke a gear tooth. There was no evidence of abnormal brass wear on the syncros. I have never had an oil engineer in 25+ years of business tell me that hypoid oil attacks brass. The light weight gear oils shift better and protect your gears better than any engine oil.
<br>Ralph Steinberg
</div>
</body>
</html>