Caltex Havoline

**CLAVEL3699** · April 28th, 2004 01:59 PM

Im using havoline formula but may leak pa rin sya. Maybe i have broken gasket very minimal nga lang sya. I dont have to add oil every weak.

Ano kaya mas magandang ipalit dun?

Shell brand ano kaya dun?

Castrol kaya?

Thanks.

**1D4LV** · April 28th, 2004 02:34 PM

clavel, an advise..... try mo muna other brands... shell is also ok, yung yellow... castrol din is also ok, basta yung mineral...

kung may tulo pa din, i think its time to have your gaskets replaced.. you may not need to add oil every week, pero ang punta nyan eh dyan din...

**chieffy** · April 28th, 2004 03:18 PM

if the other brand has the same viscosity as Havoline Formula, tatagas din iyan...papalitan mo na lang ng gasket ;)

**CLAVEL3699** · April 28th, 2004 03:24 PM

Thanks mga bro.

**jtdc** · June 7th, 2004 09:17 AM

just like to ask. as of now i run on Castrol GTX w/ Synthetic Guard. since my engine isn't that new, is it possible if on my next chage oil (due next month) i use Shell Helix Plus (the blue one), which is semi-synthetic. what good does "synthetic-ness" do? does it provide better engine performance and lesser gas consumption? i am leaning towards the fully synthetic one pero i'm worried baka tumagas/tumapon lang mahal pa naman yun. wala naman kahit ni-isang tagas or drop of oil, so i think ok naman ang seals ko.

any inputs from the gurus?

**jackaroo** · June 7th, 2004 07:32 PM

jtdc,
A fully synthetic oil means the base oil is synthetic while a semi-synth oil has a mineral base with synthetic additives- a full synth is better.

In theory, a full synth gives superior protection against engine wear since it circulates faster when cold and doesn't break down when stressed by "hot" temps.

The gas savings is achieved by using thinner viscosities, ie, 10w30 but these can break down if mineral based thus the move toward synthetics when using thinner viscosities.

Try a 5w40 or 15w50 full synth if your engine manual allows it.

**jtdc** · June 8th, 2004 07:49 PM

a very nice read why synthetic oils are better preferred. actually, i do want synthetic, i'll check if the semi-synthetic would do fine first. read this on a break or so, its a long read, but very informative regarding ENGINE OILs. the explanations and points are so good, making me think to go ahead to synthetic straight.

http://mr2.com/TEXT/synth_oil.txt

if i went from mineral based straight to synthetic... is that okay?

**boybi** · June 8th, 2004 07:59 PM

medyo OT:

meron pa bang Havoline Energy na mineral based? puro synthetic ang nakikita ko sa mga caltex shops.

**jackaroo** · June 8th, 2004 10:01 PM

jtdc
I don't see any problem switching from mineral to synth- as long as the viscosity chosen is recommended for your engine.

Some reviews point out that semi-synth oils are not worth it since their base oil is mineral, which means the advantages of synthetics are not utilized.