I was really sold on this stuff for years. Somebody recently pointed out one of my lines was weeping at a GTG this summer. I used a metric size from China. It fits pretty tight but one of my injectors weeps a bit on hot days. Tygon.

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79 300TD “Old Smokey” AKA “The Mistake” (SOLD)
82 240D stick shift 335k miles (SOLD)
82 300SD 300k miles
85 300D Turbodiesel 170k miles
97 C280 147k miles