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Motor oil recommendations?

1024054 Views 239 Replies 73 Participants Last post by  Mainia1
Has anyone other than me used the Lucas Sythetic Oil Stabilizer in their vehicles?
I used it in my 97 F-150 for 10 yrs., and sold it with 260k miles on it and never used a drop of oil, and never even had to go inside the inside to fix anything. so I know Lucas is good!
I am just curious if say a high grade Valvoline Syn-MAx oil w/ Lucas is just as good or better than the top of the line oils like Amsoil or Royal Purple?
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Some engines can be damaged by running an oil that is too thin for cold start and warm-up running, especially with cold piston to bore clearances. For example there will be excessive piston and bore wear in the engine in my wife's Opel if anything less than a 10W30 or 10W40 is run in that engine, and similarly with my Triumph motorcycle which must run 10W40. There may be a reason why Hyundai specified 5W40, and often the 5W is more important than the 40.

I don't know why so many want to ad-lib with their cars. Hyundai is a big company which has built millions of cars and they aren't stupid. If the VT will run 0w30 or 0w40 or 5w30 or 5w40; don't you think they would put that in the handbook?

But it's your engine and not mine. Go ahead and run what your heart's desire.
So what do you recommend using? My car is up for its first oil change and I want to use the best. Thanks
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