5w20- thickest conventional

[Doug Hillary]

Hi,
CATERHAM - This is why I've had great confidence in ACEA since its formation. It was put together by the Vehicle Manufacturers and not their suppliers - the Oil Industry!

When API had it to themselves they let the Manufacturers down - but then that was a few decades back!

Keep pushing HTHSV - you're on the right tram!!!

 

[tommygunn]

A thick 5W-20?

I have your solution. A few thousand miles on 5W-30 often makes a fantastic heavy 5W-20.

 

[Boss302fan]

Try PP because it's 5W30 is considered to be on the thin side.

 

[ottotheclown]

So we can say all dino 5-20 is the same weight when it comes to operational viscocity ? that seems odd in a way with some burning off, others more engine noise etc.
Originally Posted By: CATERHAM
Originally Posted By: ottotheclown
Mobil 5k is thin, Gtx is thick almost 9 .I think you might find GTX is better but do not rule out PYB, Quaker State green bottle either.You are not the first to notice consumption with 8.4 Mobil 5k.

All dino 5W-20s have much the same 2.6cP HTHSV regardless of what their KV100 spec's may be. It is HTHSV that correlates with operational viscosity.

So, as has been suggested, if you want a heavier 5W-20 you'll have to blend in some 5W-30.

 

[TFB1]

Originally Posted By: fisher83
Is there a 5w20 conventional that is on the thicker end of it's viscosity range?


Most 5W-20 are between 8.5 & 9 cSt so are on the thick end of the range, while most 5w-30 are on the lower end of their scale... Just buy a change of favorite(on sale)20 & 30 then use half of each, you'll have either a very thick 20W or very thin 30W...

 

[lexus114]

My vote is for Castrol GTX 5W-20.

 

[buster]

Amsoil with a HT/HS of 2.8

 

[addyguy]

Just use 5W-30.

 

[CATERHAM]

Originally Posted By: TFB1
Originally Posted By: fisher83
Is there a 5w20 conventional that is on the thicker end of it's viscosity range?


Most 5W-20 are between 8.5 & 9 cSt so are on the thick end of the range, while most 5w-30 are on the lower end of their scale... Just buy a change of favorite(on sale)20 & 30 then use half of each, you'll have either a very thick 20W or very thin 30W...

Again, the KV100 spec' cannot be relied upon to tell you how thick an oil will be in an operating IC engine.
For example the Toyota SM 0W-20 has a KV100 of 8.8cSt but is the lightest oil available. More often than not, a high KV100 spec' simply indicates a high percentage of polymer thickeners in the formulation.
Relying on the HTHSV spec' to determine how thick or thin an oil will be doesn't have this problem.