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Ive just put 2000 miles on my new ZZ4 engine in my 85 Transam.GM suggets that after 2000 miles i should change from Dino to Synthetic.Ive always thought syn to be a bit thin on these older designed engines.My mate has a TVR that has a top end rattle with syn oil and when we drained it,it was...

Guys, My mate has a 92 LT1 Vette and i told him i'd ask you guys which oil suits it best. At the moment he's using Valvoline Syn power 5-30. Is it any good or is Mobil better?? Any other suggestions Thanks PM

After searching this site for the best mineral oil to run my new ChevyZZ4Small Block on,I finally decided on plain Castrol GTX 10W30. Bear in mind this engine has only ever run on a dyno over in the US but i am told is fully broken in. I want to make sure that I also go easy for a few hundred...

My local store has just started stocking Valvoline VR1 15W/50 and also Lucas Oil stabiliser. As you may have read on other postings,I'm looking for a good quality non synthetic oil for my brand new 350 Chev ZZ4(400 horsepower). Whats your opinion on the Valvoline and the Lucas product? thanks PM

Hi again guys, You gave me some advice on what to run in my new ZZ4. Ok well it has been broken in on a dyno proir to me having it and i'm about to put it in my 85Transam. I dont intend to race this car but it will be used for long journeys through europe,using continuous speeds of 80-100 mph...

Guys, Im about to fit a brand new ZZ4 with holley stealth Ram,Its been broken in on the dyno at Sallee Chevrolet in Oregon.What i want to know is should i run it on some straight 3o oil for a few hundred miles or will i be ok to go for 10-30 from the start? cheers PM

Guys, My ZZ4 is on its way over to this side of the pond from the U.S. Its been modified with a HotCam and Holley Stealth Ram set up with Commander 950 engine management. Salle Chevrolet have dynod it and run it in and it produced a max HP of 422 and over 400lbs/ft torque. I dont want to put...

I'm not convinced for the arguement of usuing synth.oil in an older design engine.I'm about to fit a new ZZ4 into my 85 Transam and GM recommend 10W30 SG.What is the SG bit? Should I use a different oil for the running in period? What would be the best oil thereafter,bearing in mind I will be...