so if someone accidently put in one quart of 5w20 in with their transmission fluid, would that be a bad thing?
so if someone accidently put in one quart of 5w20 in with their transmission fluid, would that be a bad thing?
I would change it. If it was me. Think of it as a trans flush.
thats what i was doing but those f'n royal purple bottles look the same.
Thats an expensive oops.
Manual or automatic? In a manual it won't be that big of a deal but in an automatic it can be big trouble.
1990 Mustang LX
naturally aspirated TEA Trick Flow R headed small block, C4, 3016 lbs, stock suspension, 28x10.5
9.36 at 143 mph
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