Engine oil

Keep it on topic, it will make it easier to find what you need.
BEEK
Posts: 1833
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: Engine oil

Post by BEEK »

I use modern synthetic oils with a zinc additive. Similar to break in lube for camshafts. Never had a problem. Only problems came when i used to run cheap oil. it is cheap for a reason!
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider
, 6 Lancia Scorpions, 2018 Abarth Spider, 500X wifes, 500L 3 82 Zagatos. 82 spider 34k original miles, 83 pininfarina, 8 fiat spider parts cars
son has 78 spider
Nut124
Posts: 748
Joined: Wed Oct 25, 2017 6:39 pm
Your car is a: 1978 124 Spider 1800

Re: Engine oil

Post by Nut124 »

BEEK wrote:I use modern synthetic oils with a zinc additive. Similar to break in lube for camshafts. Never had a problem. Only problems came when i used to run cheap oil. it is cheap for a reason!
Hello Beek. Do you add the additive or use oil with the additive already in it? If you add, what do you add and how much

What problems did you have with the cheap oil?
KirillZip
Posts: 15
Joined: Thu Jun 10, 2021 3:48 am
Your car is a: 2-0 FIAT TWINCAN on LADA 2103 1973

Re: Engine oil

Post by KirillZip »

Hi!

Have 2 L TwinCam ( model 132 on block)

Use 5W-40 Sintetic oil. But if engine is cold - pressure is obout 2-4 bars, but after 30-40 min (or even faster) - with temp of coolant is about 80-90C - pressure is less than 2 bars, and even if car stops on redlight - a low pressure light can be.

What oil can u recomend to use in this case. Thanks a lot!
Nut124
Posts: 748
Joined: Wed Oct 25, 2017 6:39 pm
Your car is a: 1978 124 Spider 1800

Re: Engine oil

Post by Nut124 »

You could try 15w-40 or 15w-50. Anything 5W- is usually too thin for these engines. You may have work bearings or pump though.
KirillZip
Posts: 15
Joined: Thu Jun 10, 2021 3:48 am
Your car is a: 2-0 FIAT TWINCAN on LADA 2103 1973

Re: Engine oil

Post by KirillZip »

Thanks a lot.

I open our local LukOil shop and compare speck

15W-40

Индекс вязкости ГОСТ 25371 / ASTM D2270 132
Вязкость кинематическая при 100 °С, мм2/с ГОСТ 33 / ASTM D445 13,4

5W-40

Индекс вязкости ГОСТ 25371 (Petroleum products. Calculation of viscosity index from kinematic viscosity /ISO 2909-81) / ASTM D2270 176
Вязкость кинематическая при 100 °С (Kinematic viscosity at 100 °C), мм2/с ГОСТ 33 / ASTM D445 13,6

As I can see - at 100 °C - is nearly the same
2002phil
Posts: 17
Joined: Wed Nov 18, 2020 3:45 pm
Your car is a: 1978 124

Re: Engine oil

Post by 2002phil »

I've been using Valvoline 20W-50 VR1 Racing oil with zink in my MGB, BMW2002 and now the Fiat.
Post Reply