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[Z06] use Castrol Syntrax Limited Slip 75W-140

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Old 02-01-2021, 03:07 AM
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Fred65
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Default use Castrol Syntrax Limited Slip 75W-140
hello,
Has anyone ever used Castrol Syntrax Limited Slip 75W-140 for the rear differential of a C6 ZO6?
thank you in advance,
Sports
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Old 02-01-2021, 08:42 AM
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RobRobinette
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I haven't but why not just use the LS fluid GM recommends?
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Old 02-01-2021, 11:37 AM
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Fred65
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because I have 2 cans left and it's good oil.
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Old 02-02-2021, 10:53 PM
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Navy Blue 210
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75W-90 is the spec, 75W-110 is the heaviest I would even consider using.
75W-140 will increase friction & heat with no benefit.
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