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I have a 2012 gmc terrain 2.4l currently at 202k. I’ve used Lucas oil and restore and protect Valvoline oil the last 50k. Still runs like a gem with 177-182-179-175 compression cylinders 1-4. Used to be 155-149-144-168 before I started using both these oils
I exclusively have used Lucas oil for my sportster motor for 5 years. The bottle looks cool, that's it. Full synthetic oil, no frills, cheap, and easy to get.
As soon as my warranty is up on my SQ5 in November, I'll be going to Rowe Hitech Synth RS 5w-40. One of the very few true synthetic PAOs out there and on par with LiquiMoly pricing (USP Sells it w/free shipping).
I like the Lucas ones personally.
Not really . My tuner (jackal motorsports) recommends Rowe RS synthetic oil . Currently using LM molygen , it's ok but apparentlyThe RS is the best stuff
I paid $67 for 4 qts of lucas full synthetic oil and a filter on Amazon and just grabbed an O ring from harley. Harley's oil is fucking garbage. Lucas, Amsoil, Motul & Mobil 1 full synthetic are all damn fine products.
I used lucas in my honda and will use it on my next change for harley
Lucas OS works great. It's some amazing stuff, BUT. Do not go over your oil change intervals. Once the Lucas additive starts breaking down it turns to a nasty varnish. Went 7k using synthetic amsoil z-rod and Lucas OS, on a new rebuilt 4.0l. Lost a lifter and ate up the cam lobe.
That looks like you dropped a valve. Yes Lucy’s oil will help. It will lubricate the chamber so you can take out all the pieces.
I used the middle one on an old 200,000KM Porsche Cayman S that was burning oil. It made it worse, smoke started coming out of the engine when the oil cap was off and I felt like the engine would soon die.
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In March 2026 on PartReview, engine oil ROWE were overall better than Lucas.
In March 2026 on PartReview, engine oil Lucas were overall more popular than ROWE.
By vote balance, engine oil Lucas surpassed ROWE:
By number of reviews, engine oil Lucas surpassed ROWE:
In March 2026, according to PartReview, engine oil ROWE and Lucas have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.
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Also available: comparisons of engine oil Lucas with: Mobil, Castrol, LIQUI MOLY, MOTUL, Shell, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota.
You can also see who is better among other engine oil manufacturers: Mobil or Castrol, Mobil or LIQUI MOLY, Mobil or MOTUL, Mobil or Shell, LIQUI MOLY or Castrol.