Thread: 30w verses 50w

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Any auto parts store or oil company has up to and including 140w

Originally Posted by jerry clayton

Any auto parts store or oil company has up to and including 140w

There are some gear oil suppliers that package their products using the "GL" ratings, i.e. GL4, GL5, and some of the house brands may incorrectly state that their gear oil is equivalent to 140W, which shows that whoever approved their label does not understand the testing methods, IMO, and it might even be reason to question the quality of their product.....