Radiator stop leak

Rubber duck kw · Aug 20, 2019

SpeedyGonzalez said: ↑

Lucas is just base oil, by adding Lucas you just dilute the detergents and friction modifiers, it's worse to add it to your oil. It doesn't have any zinc to help with cam followers and cams, no detergents to carry soot away and prevent deposits, it's all snake oil. If it wasn't it wouldn't be an additive and people would only be running it in their engines. The best thing to do is find an oil additive with hefty amounts of ZDPE, that was removed because it destroys the catalyst in modern day catalytic converters.
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I know people who do run nothing but Lucas in stuff, it's 350 chevys that get absolutely thrashed to hell though.

AModelCat · Aug 20, 2019

Working2party said: ↑

I bet you have a Ford!! I do to! My 05 has had timing/cam trouble since I bought it with 200,000 miles. Ford dealer told me it needed a new engine it was going to blow soon. I put timing chains and a catalytic converters in it and fixed the left exhaust manifold, and installed a manual oil psi gauge. Took a few miles to get the rattles worked out of the lifters by upping the viscosity and getting the warm idle psi up above 25.

So I’ve been putting 15w-40 since 210,000. She just rolled over 240,000. Still quiet except for the exhaust manifold that just opened up.....

Yes a new engine may have been what it should have had, but who has $6000 to put in a $2000 truck? Am I a fan of Lucas? not really, but understanding how everything works is beneficial and I can see its place.
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Yup. 5.0L. Had a random little tap at idle ever since about 40k km. Ford couldn't duplicate it so I was like whatever. Drive it till it blows. Its got over 100k km on it now and still going strong. The Vortec in my last GMC had a random knock since new too and it was still running great with over 300k km on it.

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